Homosexuality is a strange issue.
I don't know if you can "choose" to be turned on by one gender or another. Since I was little, I get aroused by females. Like most of us men here, I'm sure
I've never been aroused by a man. Like most of us here again, I'm sure. I am built, genetically, to get hard around women. Like most of us.
From what I've seen on the subject, homosexuals *do* get turned on by those of the same sex, and not the opposite. IMO that isn't a choice, it's just how they're wired. We can't know. Cause we're not in their shoes.
I would never want to deny another human being that which turns him/her on (between consenting adults). If John Doe gets off with vanilla sex with his wife, so be it. If Jane Doe gets off 69ing with her hot lesbian girlfriend, so be it. We're all carbon based miracles, and we all check out unexpectedly. Why not let people enjoy moments of pleasure and bliss as their bodies determine fit?