If most people aren’t like you, you are not normal by definition.
Good for you that you learned to cope with that. After the ‘don’t give a shit’ stage there usually is ‘sit back and observe’ stage to understand what exactly you don’t give a shit about.
Define "most people"? Clearly an absurd question in the context of this discussion. It's like saying "Most people on earth are not like you". How do you define that?