I'm not homosexual and I doubt anyone who is would take the path of MOST resistence as a choice. I do wonder where the "gay accent" comes from, though.
My thoughts aswell.
Why would anyone decide to just choose one day "You know, I know it'll probably mean my family will disown me, my peers will think I'm an abomination and want to either verbally or physically abuse me, society in general(especially religious society) will think less of me etc etc, but, I think I'd like to put a dick in my mouth".
No ones ever given a reasonable explanation for this.
Doesn't sound like an appealing trade-off too me, lol. Unless, ofcourse, it's NOT a choice, which is what I think and it's just in someone's nature and they can't deny it. No more than I or any other straight person can deny their attraction too the opposite sex.
My two cents on the gay accent is rather simple: higher levels of estrogen.
It mostly seems like the gay voice is accompanied by other very feminine characteristics, like, extremely thin builds, effeminate mannerisms, etc.
When you see gay men like this, it's rather impossible for me to imagine them really having a choice with being a masculine heterosexual man.
That said, I'm aware there are very masculine gay men and effeminate straight men out there aswell, but "the gay voice" usually comes with other very feminine characteristics and this seems to be in the majority.