That's mathematically impossible. If you took the first 10 males and 10 females on Earth, and half of them possessed a "gay" gene where they were born homosexual; The 5 straight couples would engage in opposite sex relationships, procreate and thereby propagating their bloodline to continue through time. The 5 males and 5 females that possessed the "gay gene" would engage in same sex relationships, then they would grow old and die off. They would just be a memory to the ether.
So even if such a gene existed in the first tribes, it would cease by the end of the individual's lifespan. So there would be no possible way to pass on such a gene throughout history.
Total nonsense. Personally I don't believe homosexuality is entirely genetic, but your claim is still complete nonsense.
#1: There are numerous completely fatal genetic disorders that are still around. Look at Downs Syndrome, Cystic Fibrosis, Spinal Bifida, etc. The vast majority of times before medical help those people weren't having kids, and yet the disorders are still around. If you actually understood genetics, you'd know that there are plenty of ways for someone without a certain disorder to still have a child with that discorder.
#2: Tons of gay people have babies.
And I could care less if a person is gay or not. Just stop spreading these lies and propaganda because you're insecure about the choices you made in life.
The irony here is wild.
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