The actual act of having sex with anything is a choice. Exactly what someone are attracted to is a combination of nature and nurture, some choice, culture, everything....
"Life choices". A euphemism that people use to diminish the true nature of what is going on.
To be clear, homosexuality (or indeed any other orientation) is not a choice.
The only choice is whether to confront and accept one's homosexual (or other) nature and live accordingly - or not to.
The choice is how one lives, not what one is.
To expect of someone to live in denial of their own nature seems to me like a form of torture that one expects a victim to administer to him/herself.
Eff that.