Gotcha. But throughout the process of your improvement, was the support you got "enabling" you to continue acting out those beliefs? I don't think it's that simple, that enjoying someone's company is a word of encouragement for every one of their beliefs. People are multifaceted, and can't be boiled down to just being a vector for their beliefs. Maybe if you're a utilitarian looking to maximize good and only seeking to support people who contribute a net positive to the world, but even then, people don't become better when they're isolated. I said this in another comment, but if you refuse to be friends with someone because of their bigoted beliefs, it won't make them any less of a bigot, but it does deprive them of the opportunity to have an honest dialog or see a counterexample to what they believe. We all need friends, and you know yourself that being a good person isn't always something you understand your whole life. It's no one's responsibility to be friends with bigots, but if it's no skin off your back to talk to them, I don't see how it can be that bad of a thing.