What does ‘It’s one thing to dance like Fred Astaire, but Ginger Rogers did it backwards’ mean as a metaphor to John Roberts' ruling?
Solution 1:
Fred Astaire and Ginger Rogers were famous dancers in, umm, the 1940s I think.
Fred Astaire was a very skillful dancer, performing many complex and difficult moves on the dance floor.
But humorist Bob Thaves once noted, "Sure he was great, but don't forget Ginger Rogers did everything he did, backwards ... and in high heels!" That is, when Ginger Rogers danced with Fred Astaire, she had to make all the same complex and difficult moves he did, but on top of that, as the woman she was dancing backwards while he was moving forwards, plus she was wearing high heels while he was wearing flat shoes, which surely made it more difficult still. So the point is, he was saying that Ginger Rogers's job was even more difficult than Fred Astaire's. (As I don't know anything about dancing, I have no idea if this is true. But that was the point of the quote.)
I don't think the original author was trying to say that Mr Roberts went backwards, but rather simply that the task he was trying to accomplish was very difficult -- like dancing backwards.
So without the allusions, the writer was trying to say something like, "This was a very difficult and tricky task. It's one thing to do X in general; it's even harder to do X under these circumstances."
I doubt the average young American would recognize this allusion. I'm 53 years old and I think it's fortuitous that I happened to recognize it. I suspect most Americans under 40 have no idea who Fred Astaire was, never mind recognizing the quote.
Houdini is better remembered, so yeah, I think most Americans would at least know that he was a renowned escape artist.
On the flip side, I'm only vaguely aware that Jersey Shore is some TV show popular today. I know nothing about it. But maybe it's well known to young Americans.
Now that you mention it, that was quite a set of cultural allusions to include in one brief quote. I wonder if that was deliberate or if it was basically a coincidence.
Solution 2:
It is a reference to this comic strip: http://www.frankandernest.com/search/index.php?kw=astaire+backwards
The quotation means that women have to work harder than men to get the same job. But even when they work harder than men, they don't receive the same rewards as men, such as recognition, pay, power, and job promotions.
Notice the movie poster in the comic doesn't mention Ginger Rogers. She is not getting the same advertising promotion as Fred Astaire, even though she and Fred Astaire were co-stars and dance partners in many famous movies (presumably including the movie poster in the comic strip).
As a woman, she had to learn the same dance moves as Fred Astaire, but "backwards," then she performed the dances while wearing high heels, which is more difficult than what the man has to do. Yet she did not get as much fame or credit (or pay) as he did.
Personally, I am impressed that a male comic writer published this in 1982. The quotation has become a popular reference in favor of women's rights (feminism).
The reader may apply this quotation more generally to all less-privileged groups. For example, people other than white men have to work harder for less; or women of color have to work harder than white women, etc.