Listen asshole, I can admit I don't have the stones to run into a shootout unless a loved one's life is at stake. We all know you are a big hero. Now unless you are going to do that job go fuck yourself.
The sheer numbers of police it would take to properly secure schools isn't feasible.
Then he shouldn't have taken the job? It's his job. It's basically just paycheck for nothing then. You can argue the same for any position, including military, and it makes you look stupid.
I haven't argued for securing schools with officers. The better route is being more stringent on who can have a gun and banning guns with detachable magazines.