This is exactly a good example though, because they wouldn't have made fun of a right wing politician way back when- RFK jr is just that ridiculous. Linking vaccines to autism, stopping vaccine and cancer research which is going to cost millions of lives, and more.

You're asking the impossible, such a person can't be reasoned with, and will certainly not listen to education from NPR. Mocking is the correct response. To me, your example exactly underlies the point that NPR didn't get more extreme, but the news they cover did.