Depends on the person. Maybe some of them don't like it when they are confronted about their beliefs because they are insecure about them, and maybe others don't like it because they don't think it's anyone else's business to get in their face about their beliefs. No different from anyone else with their own views.
"Of course, everyone will claim they respect someone who tries to speak the truth, but in reality, this is a rare quality. Most respect those who speak truths they agree with, and their respect for the speaking only extends as far as their realm of personal agreement. It is less common, almost to the point of becoming a saintly virtue, that someone truly respects and loves the truth seeker, even when their conclusions differ wildly."
-walsh
-walsh