I really think the 'arm teachers' argument is hollow and phony. They just need some kind of argument that proliferates guns.

If the dems say "ban guns", and the repubs say "mental health and bullet proof doors", then it's really easy to just say "let's do both". So I think there is a better than average chance that the "arm teachers" movement is just a red herring to facilitate a negotiated middle ground settlement of "mental health and bullet proof doors"