The NRA would like to put armed guards in schools, and I bet it happens, because its the perfect storm of ignorance and self interest. First off, all these guards will have to buy guns, so corporate profits although they will scream "jobs jobs jobs" Second, the schools will contract with private security companies again leading to corporate profits, but expect to hear "jobs jobs jobs". Third, it's an opportunity for every guy that couldn't pass a police or military physical to finally get to carry a gun and get paid for it.
My guess is that it will lead to a lot more school shootings, but it will be the untrained armed guards shooting brown students that looked at them funny, and it will be a good opportunity to incarcerate the "weird kids" because they make the untrained armed guards uncomfortable.
The status quo of a few school shootings is better than what's coming.