Corrupt, arbitrary policing isn't the flex you think it is.
If you want a law against this stuff, make a law against it, there probably already is one if the laws we have are properly interpreted and enforced. If you want proper enforcement of those laws and accountability for the police to actually follow those laws, then yes, we're on the same page.
Vigilante justice only happens when your justice system has failed. Tolerance of vigilante justice only happens when your justice system has already failed twice. That's Russia.