I had a collection of 'friends' like this in high school. I couldn't totally avoid them because we were in the same sports and classes. They were the so-called 'coolest' kids. Egregiously handsome. Good at sports. Average at academics. Their behavior was disgusting and I not infrequently stood up for kids with disabilities they would make fun of, for example. Just awful humans. I graduated from high school and moved to Manhattan for college and have not spoken to them since. Haven't been to a single reunion, nor will I ever.

In my experience, the most effective method of dealing with these sorts of people is to be done with them. It feels great.