only affect change if they become violent (see george floyd)
Did those even change anything, actually? I just remember some statues being torn down and the police just doing their business as usual. They also need to be aimed at the correct targets for them to be effective.
Except when the other party sees they lose 3/4 elections in a row by putting up fascist boogeymen, they will statistically stop doing that, since it’s a losing strategy. They can only keep doing that because Americans are showing them that they actually like it better than an actual human being.