Yeah, it suxs, but think of it as their lost.
However, I think we are all guilty of this to a certain degree. Everybody has a standard on who they want to associate with. We tend to gravitate towards people who are like us. For example, I don't like to associate with gangsters, or close minded people, or lazy people, and the list goes on....does that mean I'm one of those people who think they are better then the people they don't want to associate with? I don't think so.
Regardless, I can see your point, which is to accept people as who they are regardless of what they are. But in practical terms, how easily is that achieved?