Why Does It Matter?

So is it wrong for me to feel insulted when someone learns about me being into guys and them saying well whats it like taking it up the ass? no they don't mean it as in insult but somehow it feels that way not the fact they just asked that, but that they would think that i would be the bottom in the relationship i mean there is nothing wrong with being a bottom i am glad that there are guys that enjoy it. I just cant help feeling stupid because i get insulted by the idea of taking a dick up my ass like somehow that makes me less gay or something.