Cute.

Alas, "homosexual" — like "polyamory", "microgravity", "electroconduction", and "mammogram" — is a Greek-Latin compound.

("Homophile" was current once, but no longer; "polyphilia" is sometimes reported, "multiamory" not so much; "microbaricity" would imply vacuum rather than freefall; "anbaroconduction" unreported outside certain fantasy universes; and a "mammoscript" sounds like the upstairs equivalent of a Vagina Monologue.)