I'm as guilty of this as anyone. It's cathartic to refer to "the real crazies on the right wing" or to dismiss some piece of horrifying news as "crazy."
But it's a dodge and it stunts our ability to be analytical and critical if overindulged.
Many of these people do not lack for education, mental health, or the ability to choose other movements to associate with. If your model of behavior can't accommodate that, your model of behavior is flawed. (Or hell, in the original meaning, "crazy.")
As to the ablest aspect—poor mental health can certainly cause erratic and sociopathic behavior but most people with mental health issues do not exhibit this.
And yes, "crazy" has had multiple connotations for centuries well beyond "mentally deranged" And yes, reactionaries are in some senses broken, but that's not usually the connotation.
I'd like to preserve uses like "crazed rant" because I think they're evocative. So from me this is a narrow ask, not a broad one.
https://www.etymonline.com/word/crazy
As to the ablest aspect—poor mental health can certainly cause erratic and sociopathic behavior but most people with mental health issues do not exhibit this.
And yes, "crazy" has had multiple connotations for centuries well beyond "mentally deranged" And yes, reactionaries are in some senses broken, but that's not usually the connotation.