[gruez]

>Isn't the word for that "criminal"? You can add intensifiers like "serious", "hardened", "deadly", etc to emphasize how bright the line violation is.

So what, the only difference between a serial killer and some guy committing tax fraud is that the former is more "serious"/"hardened"/"deadly"? You don't think mental health has any role to this? When people mean "insane", that's what they're gesturing to, not what the DSM-5 or whatever says.

>but that consensus breaking down does not mean that 41% of 18-29 year olds are insane. That's just not what insane means.)

"acceptable" isn't the same as willing to undertake the action themselves. Mangione is being called "insane" because he actually killed someone, not because he answered yes on a poll asking whether it's acceptable to kill healthcare CEOs.