So I think we're agreeing on the direction of action but I do want to say, like, I don't actually agree that perfectly stable people turn into active shooters, I think that's kind of my point.
Almost all the mass shooters we've seen have not been very stable. They've had unstable jobs, unstable relationships, unstable housing, etc. Because they aren't stable people because of their serious personality issues, and that's the whole problem. There aren't any happily married fathers of three with two-story houses going out and shooting thirty people. In general the reaction from those around them is basically "yeah, that guy was dangerous." Often their family has specifically been trying to control their access to other people or dangerous items because they know the risk is there.
The majority of people will never, even if they lose their job and house and family, turn into mass shooters. That's why it's so important to focus on the people who might, because they are actually distinguishable and identifiable well before they hit the point of action.