If you commit treason. You can be charged with treason. If you commit any other crimes yo can be charged. Unfortunately no matter how crappy a group you join if you don’t commit a crime you should not have any legal issues. It scares me that people these days are very quick to want to take away peoples rights especially the first two amendments. The drawback to free speech and liberty is you have to listen to things you don’t like. The slippery slope of drawing lines is getting old.