" without resorting to physical or verbal assault?"
Excuse me but it appears to be the liberals who rant and rave and ignore the facts when it comes to a discussion on guns.
Conservatives have facts on their side: gun laws don't constrain the mentally ill intent on doing harm. They will find a way to get illegal weapons or just use a different method to inflict harm.
Gun-free zones are prime targets for those intent on killing others en mass.
In just about all instances of mass shootings the shooter, when confronted by someone with a weapon to stop him, chooses that moment to kill himself. The threat of someone shooting him stops the attack. How many more students would have been killed if the police had not shown up on the scene?