I'm going to be friendly with a neo-nazi
What is your reason for wanting to be friendly with a neo-nazi?
I plan to befriend him so I can expose him as a neo nazi later on.
You have the right to be friends with whoever you please. However, it sounds like you don't really like this guy as you want to expose him later. He may want revenge for this and may come after you in the future.
You are not respecting my rights to be friends with whoever I want.
It just doesnt seem right to try and trick someone by befriending them. A neo nazi also does not sound like the type of person that you want to mess with, as they may respond in a violent way.