People often conveniently claim they had "no choice" so they can absolve themselves of responsibility for their actions.
Choices or no choices, or free will, doesn't absolve someone of consequences, responsibility, or reality stemming from actions being undertaken.
> How much of a choice is it to be attracted to a given individual?
Don't confuse ones' choices with ones' desires. You have free will, you can indulge in the bad predilections, or not. Your choice.
Nobody said making the better choice is easy.
If I had my druthers, I'd eat nothing but donuts and ice cream all day. But I choose otherwise.