That is a very good question. Many seem to think the Russia investigation is ok even if there is nothing to be found because the intentions are to take down trump. I've had many debates with friends where I pinned them down and they finally admitted there is no direct evidence of collusion with Russia, and they admit that it's for a good cause so it doesn't matter. I'm a progressive and despise Trump, but these dishonest tactics only do harm to the cause.

Same goes for the anti-anti-vaxxer campaign. It's obvious to most educated people that vaccines are a good thing, but to the uneducated, they see through all the propaganda for vaccines and it backfires because they end up trusting the establishment even less. Seeing everything as a team sport ends up with each side using any tactic, no matter how dishonest, to win the game.