You can't use logic with them, they will simply come up with another half-assed reason why street protest are great when you demolish the one they were pushing with logic.

The best way to make change is by filling out the Census form and VOTING in EVERY political race. When those things are done, we get rid of hostile politicians, prosecutors and judges. When those things are done, we get police chiefs that reform police departments and fire bad police officers. It takes some time, but voting has always delivered infinitely more progress than street protests. When those things are done banks that hold government money are forced to hire and promote Black and other POC.

All street protest do is give cops that have such tendencies a reason to become violent, because the chaos of the protest and actions by anarchists gives cops cover to become violent and get away with it.