Uvdale already had school cops with guns and they failed to prevent anything. Except I've read some stuff where they got their own kids out of the school first, then locked the doors. Then prevented anyone from going inside. They did trap the shooter like a rat, they trapped him inside a classroom with a teacher and a dozen kids.

most conservative stances rely on believing there are inherently good people who are superhuman and can recognize inferior bad people in an instant. Also that inherently good people will have aligned interests and will know how to coordinate with one another against the bad people. Oh, but good people don't need training or organization to know this. They just know, because they're good people with guns and they have superior Judeo-Christian values and prayed together and were raised properly.

That's the entire ideology behind giving teachers guns and hiring more school cops, or giving the kids guns. They'll simply know an instant who the bad guy is and execute plan alpha delta bravo and shoot him before there's even trouble. Conservatives desperately want to believe in pre-crime.