This is technically from LGBT-comics but I think it does a good job of peaking into the mindset of LGBTQ.
Everything to them is about sex. Everything. Even when you choose to be single, that in itself is a sexuality. And they create made-up rules to tell other people what sexuality they are because of what they see in that person. Because they think sex is everything.
Maybe find something else to live for instead of worrying about others, just like how you told conservatives the same.