Partisan bickering over the president’s mental capacity is not new. It’s as American as apple pie, in fact, and a subject of more urgency only as a function of the phenomenal powers invested in that office. It’s one thing to concern ourselves with the unknowable mind of this president, but it’s something else entirely to obsess over the minds of the masses. Those are the thoughts with which so many seem preoccupied. Those thoughts might be wicked thoughts. And since wicked thoughts cannot be proscribed, their very inception must be interdicted. Down that road lies its own sort of madness.
https://www.commentarymagazine.com/politics-ideas/fear-people-think/
Acerbity [əˈsɜːbɪtɪ] 