Ranting aka (if you’re kind to yourself) correction.

I know God hates dissention among brethren but sometimes I hear something preached that seems so up the wall I have to say something (privately to the person, not publicly). Even then, as soon as it’s done, guilt comes. Am I being oversensitive, is there room for this kind of discussion? I would rather err on the side of safety and perhaps keep away from the presence of temptation.