the Ancient Rome, Greek and Chinese were all very accepting to homosexuality, but at some point of history homosexuality became a social taboo in most parts of the world, when and why did it became a social taboo?
Greetings. Not to discourage further responses, but do check these older answers while you wait :
How common was homosexuality (or what we'd now see as homosexuality) in Ancient Greece? by u/cleopatra_philopater
What are the historical origins of homophobia? From what I understand, homosexuality used to be considered just a normal thing in classical Greece and Rome and the like, how and why did homosexuality stop being accepted and homophobia come to be? by u/Steelcan909 and u/sunagainstgold
When and why did homosexuality become a taboo? by u/sunagainstgold
Hope this helps.