An acquaintance/friend of mine is gay (and she’s totally anti-trans, anti-nonbinary, etc., and mostly hangs out with straight gays..it’s kind of interesting) AND her older brother is gay too. It’s got to be evidence of genetic/biologic influence (impacting both XX and XY) or parents. From what I know of the parents, it’s the parents.
An acquaintance/friend of mine is gay (and she’s totally anti-trans, anti-nonbinary, etc., and mostly hangs out with straight gays..it’s kind of interesting) AND her older brother is gay too. It’s got to be evidence of genetic/biologic influence (impacting both XX and XY) or parents. From what I know of the parents, it’s the parents.