Without actually shooting? 70-80M people can do plenty. Withhold the money. If we haven't the guts to withhold the tax money, at least let's stop supporting the media and the states (and big cities) that installed Biden/Harris where they should never be. Get off Facebook and Twitter. Cut the cable. If possible, remove the kids from public school, and don't finance their college education at any school with a bad infestation of liberals. And one legal way to avoid taxes that support a liberal state, is to move to a better state. Yeah, it's very inconvenient, so was Valley Forge.
Actually, I would be more interested in a massive trucker strike with no food going into the major cities. Just have a significant number of truckers be afraid of “Covid-19” and fear going into the cities.
If the effort to rightfully achieve the earned second term...going Galt is the very first step that all can take without even the process of organization and mobilization.