As a patient they'd be deeply dependent towards you and because of that would probably be willing to listen. You'd be surprised how much regular people agree on certain issues. Unfortunately another awful element of imperialism/capitalism is that the individual has a decent possibility to remain blameless through delegation and lack of education/understanding as to how their actions lead to other worse actions.
It's up to you, but I think empathy as a starting position would be wise. If you had to, maybe boycott outright Trumpers or Lobbyists lol
I don't disagree with your derision of the banality of evil defence, but the delegation and relative degrees of powerlessness allows us to judge on soldiers as a case by case basis.