Fascinating. Not trusting the government to oppress only the people you don't like, you have a problem because you really want certain people 'taken care of.' ('Hung from lamposts,' I will assume, is an accurate illustration of the sort of desire hidden under that vague 'taken care of' phrase.) Anyway, your solution is to go to mob action.
Gods man! You really want to live in a society where people are free to kill others they think or imagine are dangerous wrongdoers? Given the obvious deliberate judiciousness of mob action (irony), that is nothing less than a call for genocide.
Talk about a cure being worse than the disease!