Really? I reread his comment and didn't get that interpretation. In any event, I doubt the people posting death threats on social media are the type to reflect rationally on their actions.
You are painting the mentally ill with too broad a brush. There is a difference between 'ill' and 'dangerous'. We should not engender a society that encourages people to toe that line.
I'm not sure. There's two[1] types of errors at play, correct axioms but incorrect logic, and incorrect axioms and correct logic. Which of these errors do you tend to see death threat makers engaging in?
1. I'm oversimplifying. Ofc it's possible to combine the two as well. But we are talking about tendencies.