Of course punch Nazis. Of course. I'm not gonna have a problem with you starting shit with Nazis, though I'd prefer STRONGLY you report them so I can suspend the instance. There are battleground spaces. This? Ain't it. Use this to make friends and regroup.
There are a lot of people who are looking for socially acceptable victims. I am not the person who will buy the bullshit you tell yourself about that.
Be a comrade or eff off.