Same truckers should also refuse to deliver into these cities as much as is possible. Farmers should avoid supplying food to the cities in lieu of the suburbs when they are able. There are plenty of business outside of city limits run by like minded people. Violence gets us nowhere, it just empowers them more. Civil disobedience has always been more effective. If the Boston Tea Party turned violent, the cause of splitting from England would’ve been lost because the undecided half of the population would want no part of it.