You haven't met my cousin. Same age as me, we grew up together in rural Idaho in the '80s. He always had slightly weird speech mannerisms and feminine interests (going back to like 4-5 years old). He also had no shortage of friends in rural Idaho despite being a somewhat effeminate dude because he wasn't a narcissistic faggot. Came out as gay in his early 20s and I was completely unsurprised. He's now been married for 15 years.

That’s not genetics… again why I brought forward the only current viable hypothesis, which essentially boils down “it most likely happens during fetus development, but we don’t actually know”. There’s also the harsh reality that there are far more men that engage in sodomy without being “gay” the more it is normalized and accepted.