Who knows ?
Homosexuality and transgenderism is way too politically charged to find real answers.
No gay gene was found, the closest model they have is a cluster of hormonal influencer genes. However we know parasites like Toxoplasmosis can induce polycystic ovary syndrome in women which causes hormone dysfunction (I know because I had POCS its why I don't allow cats near my kids now). Supposedly POCS is highly correlated in lesbians (supposedly emphasized).
Even identical twin studies showed nothing conclusive, sometimes one twin was gay and the other wasn't, sometimes both.
However granted we are biological beings, I strongly suspect endocrine disrupters like microplastics aren't doing anything positive for us.
No gay gene was found, the closest model they have is a cluster of hormonal influencer genes. However we know parasites like Toxoplasmosis can induce polycystic ovary syndrome in women which causes hormone dysfunction (I know because I had POCS its why I don't allow cats near my kids now). Supposedly POCS is highly correlated in lesbians (supposedly emphasized).
Even identical twin studies showed nothing conclusive, sometimes one twin was gay and the other wasn't, sometimes both.
However granted we are biological beings, I strongly suspect endocrine disrupters like microplastics aren't doing anything positive for us.