I dont think these are actual stereotypes. Maybe the witch one, if you're 5. The only stereotype I can think of is if you own more than one cat, you are doomed to be alone.
I don't see anything wrong with owning pets. I have a pitbull mix and I can honestly say that he's cooler than a lot of people I went to high school with. Seriously, what is this thread about? The original post made no sense. Maybe the girl he was talking to would rather spend time with her pets than him?
So, in other words, you guys are upset because women prefer pets to the wonderment that is you? Get a dog.