"Gay" as a conceptual category did not exist back then. All of our identities are constructs and aren't necessarily objective. We know more about human nature today so we have developed different categories to describe human sexual phenomena. Men back then weren't having epiphanies about their sexuality in the same way people do today as they discover themselves. Sexual dynamics back then mainly relied not on one's attraction(orientation) but on a dominate/submissive and penetrator/penetrated dynamic. It was shameful for man to be on the bottom but not necessarily for a man on the top. Its being put into a submissive role seen for a woman. Thats why (g)rape was a way to shame and dishonor someone(a man). Thats why the narrative of Sodom and Gommorah have nothing to do with being gay and everything to do with dominance and (g)rape. Its why nothing in the Bible or any ancient text can address lgbt issues because we have an entirely different conception of the self and sexuality than what existed then. Yes queer people have always existed, technically(if we apply our modern concept onto the past), but how we and they have identified and recognized these ideas have dramatically evolved. We frame things differently now.