Is it normal to be disgusted with people with mental disabilities?

Every time I see disabled people, I avoid them. I try to keep myself as far away from them as possible. They just disgust me with their words, actions, essence. "They did not ask to be born" I am not going to dignify that with a response. they make me uncomfortable to a large extent. Whenever someone on Dr.Phil would say the word "retard" Dr.Phil would flip his shit and say "that's offensive" and before the other person can say anything, the goddamn audience starts clapping. There is this crazy girl that takes out the recycling and she walks in screaming and I just have the urge to kick her. "You are a cunt" yeah I know, thank you. I am not some kind of Hitler, I do good things to people, but when I come across the "mentally challenged" I just lose it. I had a teacher that tried to make this bozo fit in and I was like "Just give up. He won't fit into society anyways." And these fuckers grow up and get their ass on welfare and this is where my taxes go to? I mean, the sight of them repulses me and makes me want to puke. When people tell me to stop insulting them, it makes me want to do it more. Fuck society. Does anyone agree or is going to start a hate campaign against me?