>you get into ethical questions very quickly where it’s not always so clear what the answer is<p>Bullshit. The line is very clear. Nobody has the right to initiate the use of violence. You have a right to defend yourself if someone is trying to punch you. You do not have a right to attack someone for being a Nazi, or a Commie, or a BLM-er, or a Trump supporter, or a slut walker.