Why don’t other pronouns get to albe-themselves, à la albeit’s “it”?

• YES: "Euthanizing this particular kitten was a traumatic, albeit humane necessity."

• NO: "The geese, having pooped everywhere, made for hideous pets, albethem delicious as an entree."

• NO: "Most of the pigs were oblivious, albethose closer to the pen showed increasing anxiety."

Why does albeit have no pronoun kin? (Albeshe, albethis, etc.)

Solution 1:

Because the it in albeit is the "dummy it". It's a contraction of "although be it that". There is no such thing as a "dummy them" or a "dummy those" in English.

Solution 2:

Albeit is a contraction of although be it that, meaning something like although it is the case that. So:

• That's a cool handbag, albeit expensive

means

• That's a cool handbag, although it is the case that it is expensive

And:

• Those are cool handbags, albeit expensive

means

• Those are cool handbags, although it is the case that they are expensive

As RegDwight states, the it in albeit is a dummy subject; it is not an anaphoric (backward) reference to any specific noun in the preceding expression. This is why words such as albeshe do not exist.