I'm not talking about vigilantes. I'm talking about being able to defend. I gave examples - like the beheading of the soldier on the street of London, or the nightclub massacre in Florida.
It's so weird that the soldier was killed in broad daylight, on a busy street - and the killers stood there for how long after the killing, without anyone engaging them! How could anyone engage them when even the cops aren't armed in England!
But yes, I see your point, too. There will be the trigger-happy, and the loonies.