I've known quite a few gay men and women over my lifetime and there is nothing wrong with them.
It is perfectly normal to have gay people in human society and i expect there have always been gays since the beginning of mankind.
I've had a couple of transexuals[thats what they used to be called back in the 70s]that were good friends of my wife and myself. Again to me they were normal, they couldn't help being who they were in the same way a 'normal' heterosexual can.
Most gay men i've known do not mince around all campy like Freddie Mercury used to! They didn't dress up as hideous looking drag queens either.
Freddie was camp as fuck but still an absolute badass. And yes, LGB people have been around (at minimum) as far back as there is written human history with indelible contributions to civilization and culture, spanning from Alexander the Great, Julius Caesar, Horace and Hadrian to Da Vinci, Michelangelo, Francis Bacon and William Shakespeare to Nathaniel Hawthorne, Walt Whitman, Alan Turing, Billie Holliday, James Baldwin, Malcolm X (...), Marlon Brando, Laurence Olivier, Lou Reed, David Bowie and Pete Townshend, among plenty others.
That's just not true.
The Church, monks throughout Europe, Clerics and scribes throughout the Muslim world played a MASSIVE hand in preserving knowledge of ALL kinds and advancing various sciences.
This is indisputable.
I'm agnostic but grew up in a Lutheran family and I'm not as militantly anti-religion as that post probably came off. However, it is absolutely true that the most advanced countries in the world have separation of church and state (or no religious base at all). Science as we recognize it today as the enterprise of cumulative knowledge didn't come into existence until after the church was turned on its head and publishing findings that went against the grain came at great personal risk. To meet the criteria, it objectively begins with the Newtonian Synthesis and establishment of classical mechanics, partially built off previous work from Copernicus, Kepler and Galileo.
I will level with you to a degree here though:
An huge caveat to the WIKI screenshots above and perhaps further reason people shouldn't take it as an authority is that it makes no effort to distinguish what it means by "science" (see above) and the Church's role in promoting it. The problem wasn't even so much religious belief itself but that it was fixated on Aristotelian thought and
that indisputably played a major role in keeping western civilization's scientific progress shackled for nearly 2000 years after his death. Because Aristotle was wrong. Way wrong, about a whole lot in ways many of his own contemporaries weren't, predominantly mathematicians.
I cringe when he's cited as the most influential figure of all-time or thereabouts, not because it's necessarily false but due to it generally being framed as a positive thing. His influence was pernicious and even in his time he was largely responsible for dismissing Leucippus and Democritus early ideas (5th Century BC) on the atomic theory of matter. It took until Albert Einstein in 1905 to prove the existence of atoms beyond doubt.
Islam was definitely the bright spot of the middle ages. With the establishment of the Abbasid caliphate and opening of the Bayt Al-Hikam (House of Wisdom), Islamic civilization was at one time at the forefront of the world's progression and advancement and produced several great mathematicians, geographers and pre-physics astronomers including but not limited to the likes of Al-Khwarizmi, Al-Battani, Al-Birruni, Ibn Sahl, Jabir Hayyan, Alhazen and Omar Khayyam (some of his writings are censored in Iran today for "corrosive atheistic sentiments").
Where it started going awry, declined and all but collapsed predates even the Mongols Siege of Baghdad and was fairly strongly due to a rise in popularity of the Sunni Ashʿari school of thought based on clerical authority and rejection of cause and effect reasoning. The most influential proponent of it, Al-Ghazali (a Persian, somewhat ironically) is often cited as the most significant Muslim next only to Prophet Muhammad largely for this reason.