Homosexuality existed in ancient Greece and Rome. Most of us know of Sappho of Lesbos.
That said, terms like gender neutrality and people who consider themselves "non binary" or whatever else, are mentally ill. I understand sexual attraction between people of the same gender, but I won't and will never understand a man saying that he's not sure what he is and that he's planning to switch between genders in future to check which one fits him best. When you're mentally unstable you shouldn't try to project your lunacies on others and demand them to be respected. I have no respect for pedophiles and I will have no respect for other degenerates like grown men identifying as teenage girls, or whatever.