And yes, we should blame them for the things they do. T But the comment I was responding to was acting as if MAGA was the reason for measles outbreaks, which is false. I'm an incredibly strong believer in the truth. An example of why I think this is an important separation: imagine you tried to fix the measles outbreak and miraculously got every single American to hate Trump and got Trump out of office. The problem would still not be fixed! People would still be dying of measles! The effort would have been almost completely wasted!
My personal belief is that there a lot of people who believe stupid things out there (and it's all only amplified by the news and social media), and for anti vaxxers especially I don't think an authority figure saying 'You have to get the measles vaccine!' is going to help much, unfortunate as it is. :(
We managed to cut the smoking rate pretty dramatically, including in about half over the last decade. Public policy is not ineffective, we just need competent people to wield it.
Also smoking smells and has other negative externalities, which doesn't hurt.