You are acting as if police brutality and police murder are the fault of those that throw the first stone. Its not. Its not like peacefulness or being passive makes you safe from police brutality, because you have very limited control how the police as a whole and how individual cops actually act.

Also, the people who were showing up to start trouble were usually police agents or locals who thought that it would be fun to throw a rock at a cop. The IWW people knew more about police violence then you ever will; they were around before Miranda Rights and body cams. If they thought having a team there was a good idea, you should learn from them.

That mght be true in the time you are talking about, but currently rioting is a thing many people do and its shown to be effective. The George Floyd uprising was as big and powerful because of the rioting and not despite it.

This does not mean disregarding past experiences, but (to me seemingly) more recent experiences show the power of riots and the ways anarchists can show solidarity, especially in the context of the so call USA.

I also think calling for peacefulness when friends, families, colleges, neighbors, comrades get disappeared is just not what is needed in these circumstances and its also not stopping any of this.