It depends on why they're bothered. It's better to talk about things
, rather then just get mad and think the other person is a jerk or stupid.
There are many valid reasons to not be okay with porn or to just not like it. It doesn't make her a dumb insecure bitch. And if she IS insecure, is that really a crime or all that unusual ? If you actually care about something, that's something you work with and through - not laugh at and write off and undermine.
Shit happens, people have different live experiences. I think saying "No, I would NEVER give it up" is just as juvenile as saying, "all sexual imagery is bad, bad, bad".
Talk about it. There are many outcomes that could please both parties.