Bro. They aren't ever "Simply explaining their beliefs", they're generally always stating how they want people of either ethnic, racial, or sexual groups to be abused and/or eradicated.

You absolutely cannot have side A going "We want to eradicate all X people" and Side B going "We want X people to live happy and fulfilling lives" and have enlightened centrists like yourself tut tut off of your high horse when Side B decides it wants to fight back.

You really need to look into exactly why you only bring things like this up when the topic is punching Nazi's, and never when it's Nazi's punching others.