Argh!!!!! how do i get my parents to stop making idiotic comments like this!?!? it's seriously ticking me off!?

Just tell them that you know they are smart and you are proud of it but there are a lot of people out there of different backgrounds and they are just as smart as the next person.Let him know that it offends you when he puts other people down as he raised you to be a better person than that.Asl him why he can not give others credit for their effort because you think they do just a good job as anyone else.Tell him he acts like a racist to you when he does this and it bothers you to think that he is that kind of person.