I'm going to catfish fat women and then verbally abuse them when we meet in person
Do you think that youa re  going to get some kind of reward for bullying them?
I just want to mock those ugly cows.
There is never a good reason to deceive and lie to innocent women like this, especially when all you're going to do is being prejudiced and nasty. It is not okay to make fun of people's appearances and make them feel worthless.
Isn't it my right to be able to insult those fat, ugly cows if i want?
Not at all.   You do not have to be around people that you do not like, but there is no need to mock them for no good reason.   Focus on meeting people that you will enjoy being around instead.