I've had a few times when people got really mad about me about my beliefs (way of thinking/arguments/etc.). I've been led to believe that it could the case that this is a compliment in disguise. If people really thought I was an idiot, then they would dismiss me. To tell me that they don't want to hear my beliefs and/or don't want me to tell others about my beliefs, then it follows they are actually taking me very seriously.