As for the gun issue...all you need to do is look at Australia, New Zealand, Canada, Norway and several others to see what happens when you institute strong gun laws and ban Assault Rifles...not one of those nations has chosen to add more guns and harden their schools.
Looks like there's some movement going on here too
Link: https://www.whitehouse.gov/briefing-room/statements-releases/2022/04/21/fact-sheet-white-house-releases-2022-national-drug-control-strategy-that-outlines-comprehensive-path-forward-to-address-addiction-and-the-overdose-epidemic/