I think you are caught up in romanticizing violence as a solution to problems. Violence creates new problems, it doesn't solve them. Also, violent pushback is exactly what fascism craves. It is like giving fascist what they want.

Fascism really can't exist without dealing with dissent violently. It is one of the things that makes them fascist. The founding fathers of the US murdered, committed arson against, and bombed colonist dissenters in violent suppression which was integral to their goal and ultimately lead to complete control.

I think another important thing to consider is the mindset of the person advocating violence. Obviously no one is saying to not defend yourself, but committing to violent acts to motivate change is rarely successful by itself. Having a violent element can certainly help with negotiations, but once violence is used it no longer is a bargaining chip.

A lot of people I talk to have the mindset that their ideology will rise up after they have burned down the system. So when the dust settles, so to speak, their "superior" beliefs will magically rise to the top.

I think this goes along with other flawed thinking like the only way to stop a bad guy with a gun is with a good guy with a gun. This belays the fact that there is no good guy and the ones that murder people are also the only one left to write about the account. This is often phrased as the victor writes the history.