There are two things which cannot be attacked in front: ignorance and narrow-mindedness. They can only be shaken by the simple development of the contrary qualities. They will not bear discussion.
The best we can do, to paraphrase Pollan, is to eat whole foods, mostly plants, and not too much.
I keep telling myself to calm down, to take less of an interest in things and not to get so excited, but I still care a lot about liberty, freedom of speech and expression, and fairness in journalism.