I have a brother like that. The only way to keep a conversation with him congenial is to not disagree with him. We had a falling out and he stopped speaking to me. Haven't seen him in years, and I think that's okay.

Your brother has some head issues. It may not be worth your while to debate him on anything. But you must not let his opinions dictate what you take an interest in. Learn to not be defensive around him, and you'll relax more. Like, if he says. "Only an idiot whould watch that TV show that you watch!" - you might respond, "I like to keep informed about what the idiots of the world are watching." or "I suppose that could be true. I guess I'm just not as deep a thinker as you are."

Make no mistake. This is aggression. Your brother is trying to belittle you. Another manner of responding might be along the lines of, "Why do you need to belittle the choices of others? Does that m