rutger5000 said:
So if you purely regard homosexuality as being dominantly sexually attracted to the same sex. Then yes it isn't really a choice, more something that just happens to you.
[...]
But still acting upon your homosexuality is surely a choice right? So why is it considered offensive to regard it as such?
I mostly see where the OP is coming from, and I agree that a lot of what you've said is technically correct - homosexuality is not a choice; acting on your urges is a choice (whether homosexual or heterosexual or bisexual), but (as you say in later posts) for most people it is the healthy and reasonable choice.
With that in mind, I think the question "so why is it considered offensive to call it a choice" is misrepresenting the statement that people are offended by.
People get offended either by:
a) the statement that "homosexuality is a choice" (not the acting on it) - you agree that this statement is not true.
or
b) the statement that "acting on homosexual urges is a choice", in a context that strongly implies that long term denial of sexual urges is a
healthy, easy, and/or desirable choice. ie: People say "acting on your urges is a choice" as a way to tell people that they
shouldnt act on their urges. The first part (its a choice) is true; the second part is attempting to convince someone to pursue a generally unhealthy and emotionally harmful behaviour and therefore can be quite offensive, particularly if the person being addressed has not asked for advice on the subject. Consider an analogy to, for example, telling somebody without provocation that they should go and self-harm.
edit:
Caveat - "
Reasonable people are offended by..." There will always be some idiot who will get offended by anything somebody could possibly say, but I suggest that reasonable people, and the majority of people who speak up about being offended, are talking about one of the two categories above.