Pointing out to someone that you don't share their worldview and in fact find it weird does contribute something, hopefully it pops their little bubble of thinking everyone agrees with them. And no, I didn't insult him, I said his reality tunnel is weird; that you can't tell the difference between insulting a person and commenting on their worldview says a lot about you. You can respect people without respecting their beliefs, you are not your beliefs, no ideas are beyond criticism.