I doubt that fits the standard for scientific evidence.
Nevertheless, it is likely that these 'effiminate' boys who grow up to be homos were simply victims of the self-fulfilling prophecy. The boy is viewed as 'different' by his parents, so they treat him differently, so he behaves even more differently, then he goes to school and gets treated differently, and so on.
"They were born that way and that is a fact."
No, it is your opinion.
Folks pay me for my observations and analysis. Observations of reality are a fundamental part of science. It is how one knows what is.
" The boy is viewed as 'different' by his parents, so they treat him differently, so he behaves even more differently, then he goes to school and gets treated differently, and so on."
Conjecture and completely in err and off base. The fundamental fact is that the boy is not excited by girls, he likes boys.
"No, it is your opinion."
There's no room for opion and I gave none. It's a direct observation.