if you don't want to have anything to do with him, just ignore him. what else can you do? Can't you hit him

if you want to make friends with him, you find it difficult to communicate. Then I can only tell you that you will never understand other people's thinking and world outlook. Moreover, there is no such thing as normal and abnormal thought. You think people are crazy, and in the eyes of others, people still think you are crazy. You're right.