The "Everybody should be armed" narrative is spread by people who can't even properly justify their reasoning. They always throw a "they should have been armed and they wouldn't die" or something as dumb "all school staff should be armed". I learned to ignore them and their wild west fantasies.

There's a subreddit that lists news stories of self-defence situations with a firearm. They don't make the news because they are all local stories but it happens all the time.

https://www.reddit.com/r/dgu/

The idea that the US can somehow turn back the clock with hundreds of millions of legal guns already purchased is laughable. Almost every attempt at the state or city level has completely backfired. That train passed long ago. And the denial of this has only ever worsened the problem. I'd go as far as saying it's an anti-science position in 2020.