I mean, if I lived where you live I'd probably have similar feelings. But here in WA where we don't really have amazing moving water trout fisheries (generally) and the anadromous fisheries are on the way out... I'm kinda all about the warm water opportunities these days. Carp might not be as pretty as trout, and the places they seem to hang out sure aren't, but at least it's something to fish for. And they seem to take a fly, fight hard, and be worth the effort. (Or so I hear, I have yet to fish for carp. I'm just a bass/panfish guy for warmwater)
I can never tell what the story is with this. Is it legit or is it like the opinion people seem to have about whitefish harming trout fisheries? For every comment like yours, I've heard a story like
@Stonedfish tells. Maybe it has more to do with how they are introduced, how many (+ if they can breed) and what specific species of carp they are?