Movements could learn a thing or two about behaviorist shaping- telling the people you want on your side that everything they do and say is not good enough is the equivalent of trying to train a dog to sit by kicking him every time he doesn't sit immediately.
When I'm trying to persuade someone to give time, attention or money to effective causes or to eat less meat, the best response to them telling me they did a 5K for a breast cancer charity or that they are doing meatless Mondays isn't: "That's bullshit, you suck, do better".
Revealed preferences- what you are achieving with your behavior actually is your objective. If punishment is prioritized over persuasion, punishment is the goal.
