Its not ignorance. It desensationalizing. Your idea is trivial.
But but but but we can't make movies or TV shows without guns! they'd wail.
We'd blandly say: Ah yes. I remember all the gun fights in The Sound of Music, and that big gun battle in The Wizard of Oz, and the shootout in It's a Wonderful Life? Classic, who could forget that!
But we don't make movies like that anymore!!!
Precisely...