Learning other languages is cultural appropriation. That's because English is a white-originated language, and anything originated by white people automatically belongs to everyone--or at least, until a nonwhite-identifying person calls dibs, in which case it becomes cultural appropriation for white people to use it ever again.
Same with gays. Anything done, used, or made by straights is for everyone, until a gay/tranny/confused attention whore calls dibs, such as the rainbow or various annoying songs that nobody even likes, not even gays.