People who actively dislike cats get my distrust. I'm often willing to give people who actively dislike dogs a chance, mostly because the majority of people I've encountered who actively dislike dogs do so because they've had bad experiences with violent, aggressive, or otherwise poorly trained/uncontrolled dogs, but people who actively dislike cats...it almost always seems to boil down to them being angry that they can't cow and control a cat as easily as they can a dog (or a person they think is beneath them.) I've met exactly one person who disliked cats for any other reason (with her it was because a cat attacked her as a kid and left her with a lifelong fear of them.) I don't think it's a coincidence that virtually all the people I've met who've hated cats have been men, either. That particular trait of hating anything you can't abuse into submission seems to be particular to a specific type of really unpleasant dude.