“If homosexuality was entirely genetically determined, MZ (mono-zygotic = “identical”) twins would always be expected to have identical sexual orientations. This is not the case. MZ twins have been found to have a concordance of 65.8%; if one twin has a non-heterosexual sexual orientation there is an approximately two in three chance that the second of that pair will have that same orientation”
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10757681/
This means to me that at least 34.2% (1-65.8%) of gays were NOT born that way, but rather were recruited into homosexuality by other gays. That’s 2/3rds potentially “natural”, and 1/3rd recruited.
Recruitment is evil.
It’s not just recruitment. Cruel fathers can also turn a boy away from masculinity. That was the experience of one of the gay men I’ve known