In large parts of the world, the idea of "self defense" guns is considered barbaric and absurd. And the high rate of violent crime in the US reflects that relative barbarism.

There are places in the world where keeping a full-auto Kalishnikov at home is considered normal. They're much more violent than the US is.

There are other factors involved, not relevant to gun control in the United States (or any other country).

There aren't a lot of public environments where one draws and uses a gun, without that being the essential purpose of the event, with injunctions towards due caution being made over and over. Gun ranges are pretty strict about eating, drinking and making merry on the premises. Eating knives were brandished casually and in the presence of alcohol.

Yes. First point is it's culturally less obtuse because it's a western frame of reference. Second, it's historic fact. More interestingly, they adapted the tools toward peaceful uses making carrying them frowned upon in public. While the same has been considered before for guns, eg. a smart gun which only chambers a round or fires when in a designated recreational shooting zone, time or season, or when pointing in the right direction, etc. ... the reality is that clawing 100s of 1000s of firearms out of the general US public is not going to happen.