Only engaging in nonviolence isn't what makes an anti-fascist useless. What makes them useless (a better word would be counter-productive) is if they criticize and demonize those anti-fascists who do use violence while not recognizing that both violent and nonviolent methods are required to defeat fascism. If you fall into that category, then it would be accurate to label you as useless (counter-productive) to the anti-fascist movement. 2/2