Oh? You want it to be about "sustainable cultures and civilizations versus perverted leftist grooming"? Okay, I'm your huckleberry.
Would you like to start with the Catholic Church and its 1,700-ish years of sustainable, civilized culture rife with grooming, pedophilia, adultery, sexual abuse and active obstruction where justice and accountability is sought? Or perhaps Christianity in general (you know... that religion whose entire ethos is a "leftist" construct) with it's nearly 2,000 year lifespan, founded by a guy who shunned congress with women and got pissy when his acolytes were making out with each other but he was left out? Or maybe you'd like to discuss how the at-large Christian Church has this habit of shielding sex-offending clergy by shuffling them from locale to locale, congregants by turning a blind eye and/or actively concealing their crimes?
Or how about Islam? 1,200 years old, still going strong and, if memory serves, you've made quite a few comments indicating Islam doesn't fit into the category of cultural sustainability. Of course, one could reasonably argue that Islam is, by its very nature, a hard-right system rather than "leftist" given its bad habit of imprisoning people over political differences, killing people for saying things that offend the leadership (Remind you of anyone? Maybe a certain poorly-coifed, orange-painted imbecile purported by his previous staffers to favor jailing, executing people who get in his way?) but, it doesn't exactly proscribe homosexuality so much as it indicates banging a dude every now and then is okay so long as one primarily plays with the ladies. Aaaannd, although cross-dressing is specifically declared haram, if one operates on an originalist interpretation of the Quran, Islam essentially decrees that both men and women must dress alike sooooo...
Mayhap you'd like to converse on the topic of Hinduism? 2,000+ years old, over 1B strong and, save for a few sectarian offshoots, doesn't care about homosexuality, transgenderism, cross-dressing and practitioners of such are allowed to freely interact with the greater social structure. I mean... with a cultural track record like that weighed against your implied maxim that sustainable cultures and civilizations can't exist under the conditions allowed in Hinduism and paired with the time-scale imposed by said maxim's referential nature vis-a-vis the current age of the United States, nation-level Hinduism should have died out over two millennia ago.