Plural form of country names

Can't we always form a plural for a place/country that isn't already a plural, like The Bahamas or the Netherlands? Suppose I want to say There are really two Xs: the one the tourists see and the one I will tell you about.

Note that two plural spellings appear to be in use for some countries ending in y.

I have sometimes been tempted to think that, as the mythologists make mention of three Jupiters, so there must be at least two Englands. In her past history, I have observed indications of a compound nature as diverse as her twofold language; and in recent times they seem to contend for mastery. It is with one only that I have to do at present. Aubrey De Vere; English Misrule and Irish Misdeeds (1848)

Cold and sea will train an imperial Saxon race, which nature cannot bear to lose, and after cooping it up for a thousand years in yonder England, gives a hundred Englands, a hundred Mexicos. All the bloods it shall absorb and domineer: and more than Mexicos, the secrets of water and steam, the spasms of electricity, the ductility of metals, the chariot of the air, the ruddered balloon are awaiting you. Ralph Waldo Emerson; Conduct for Life (1860)

"There are two Frances, and theirs is the bad one"—Bishop of Amiens, 1895
Robert Tombs; France 1814-1914

There have always, he argues, been two Frances, one turning its face to the sea, dreaming of free trade and distant adventures, and the other, the France of the land, stuck-in-the-mud and embedded in inflexible constrains. F. Braudel; Civilization and Capitalism, 15th-18th Century, Vol. III

A century ago, the red and the black referred to the struggle between two Frances, one anticlerical, socialist, universalist; the other Catholic, conservative, nationalist. B. E. Brown; Protest in Paris

In Portugal this same fundamental split between liberals and conservatives was present, even though its expressions were not quite so bloody.
From the eighteenth century onward, therefore, two Spains and two Portugals grew up. Howard J. Wiarda; Iberia and Latina America

Mary Fulbrook; Interpretations of the Two Germanies, 1945-1990 (2000)

Roy E. H. Mellor The Two Germanies: A Modern Geography (1978)

Christopher Hilton; After the Berlin Wall: Putting Two Germanys Back Together Again (2009)

Frank E. Manual; The Two Spains (1956)

McKinsey Global Institute and E. Bolio; A Tale of Two Mexicos (2014)

Joseph Luzzi; My Two Italies (2014)

H. L. Mathews; A Tale of Two Italys (2019)

M. Dunford and L. Greco; After the Three Italies: Wealth, Inequality and Industrial Change (2011)

An illustration of this front dynamic with Dutch populism is the 'Two Netherlands' speech of Geert Wilders at the Budget Review of 2009:

"The realm of Blakenende is a kingdom of two Netherlands...On the one hand our elite, with their so-called ideals. Of a multicultrual society, the mega-high taxes, the lunatic climate hysteria...The other Netherlands consists of the people that have to pay the bill, literally and figuratively."
R. Wodak et al.; Right-Wing Populism in Europe

We do the same for other names. I know two Charleys and two Charlies. Mr. and Mrs. Brown (and their children) are the Browns even though that's not their last name. We say neither *two Italy nor *all the Brown.

In addition to the "two Frances" use, the use of plurals for synecdoche, representing ad-hoc groups of countries by referring to some of their members, is not uncommon.

"As we look to the world reopening and travel resuming, the Italies and Frances are a little behind Israel in terms of when we anticipate travel will reopen. And that's due to vaccines," said Brian Znotins, vice president of network and schedule planning at American Airlines (AAL.O), referring to two other tourist destinations. (Israel targets tourism boost after rapid COVID-19 vaccine roll-out, Steven Scheer, Reuters)

There are not enough Canadas and Australias to fix the problems that Brexit will bring to the British people ("Britain Shouldn’t Put Its Money on a Post-Brexit Rapprochement With Africa", Oluwatosin Adeshokan, Foreign Policy)

The problem of financial irresponsibility and widespread dishonesty by the rich and powerful suggests a need to regulate the Andorras, Liechtensteins and Panamas, the "don't ask because we won't tell" havens which shelter vast sums from the tax collectors and which disappear the ill-gotten gains of corrupt officials and elites (Economic Governance in the Age of Globalization, p378-379, William K. Tabb, Columbia University Press, 2004)

An Iceland, a Switzerland, or a Sweden will be thrilled when they win against an England, a Spain, or an Italy because your Englands and Spains and Italies are either favourites to challenge for trophies, or at least they're legitimately trying to become teams that can challenge for trophies (forum post, "BestOf")

Less developed countries ‘have to stand up to the Chinas, Indias and Brazils”, Neal Leary

The WTO offers a robust rules-based framework to manage global trading relationships. It offers a chance to integrate the emerging economies – not just the Indias and Brazils and Chinas of this world, but also the weakest and most vulnerable developing countries – into the global trading system ("Trade and the NZ Dairy Industry", speech, Phil Goff, New Zealand Minister of Foreign Affairs and Trade)

The Uruguays, Japans, Fijis, and Samoas of this world need to be cherished for what their bring to the sport, not dismissed as mere canon fodder for the elite dining at the top table. ("World Rugby should cherish the tier-two nations, not belittle them", Ovalmauls)

They're trying to catch up with the Canadas and Japans of the world ("The world's CO2 emissions fell in 2015. But don't celebrate just yet.", Brad Plumer, Vox)

In this usage, the implication is "this country and others like it", providing one or two representative examples to represent the entire set of countries similar on whatever axis is being used.

For most speakers, metaphorical There are two Frances (two versions of the country called France) is probably indistinguishable from There are two Franceses (two people called Frances), but in context it's unlikely there would ever be any confusion. And the links into Google Books show that both versions are in use.

But there's another rather less contrived aspect to consider when pluralising Italy, Hungary, etc. To me, it's obvious that proper names ending in Y should just have an s appended (so it's three Hail Marys, not three Hail Maries). But apparently not all writers see this as such an obvious aspect of English syntax / orthography...

I can't explain¹ why so many of my fellow countrymen don't apply the same principle to the name Italy that they do to Kennedy (that link shows two Kennedies is virtually unknown by comparison with two Kennedys).

¹ Per comment from Chris, perhaps some people are being "misguidedly" influenced by country / countries with Italys / Italies. It's also worth noting that C19 texts massively favour two Germanies, whereas C20 usage is more or less evenly split. At least more people are gradually coming to recognise that country names shouldn't be arbitrarily tinkered with for the sake of misapplied syntax rules.

EDIT: It's just been pointed out to me that there's a Kansas City in Kansas and "another" one in Missouri. I've no idea why people were so motivated refer to both of them collectively in the 40s and 50s - but as you can see from this NGram, they usually did so as the Kansas Citys.

Can I add two points to what has been said above?

1. While there is only one Sicily today, there was a Kingdom of the Two Sicilies (actually Sicily + Naples) from 1816-1860. So Sicily has a perfectly good plural. Moreover, we currently have two Koreas, as well as an ongoing dispute about whether there are one or two Chinas.
2. IMHO the point about Hail Mary's, above, is not a consequence of Mary being a proper name, but rather the phrase "Hail Mary" being "headless": "Mary" is a woman's name, but "Hail Mary" is the name of a prayer, not of a woman. (I think that "Maries" is archaic: there is a Child ballad entitled The Four Marys or The Fower Maries "This verse suggests Mary Hamilton was one of the famous Four Maries, four girls named Mary who were chosen by the queen mother and regent Mary of Guise to be companion ladies-in-waiting to her daughter, the child monarch Mary, Queen of Scots".