And in those countries you don't have 'citizens', you have 'subjects'.
There are lots of reasons to need to keep and bear arms other than the need to have a check on Governmental power. Hunting, self-defense, recreation, the collection of rare or valuable firearms, etc, etc.
Your comment was modded up, though you completely miss my point. I wasn't talking oppressive countries here. For example, where I live arms are allowed but the right to them is not constitutionally empowered. You'll need a permit for them, and weapons are only available at special shops (as opposed to several countries I've been to where guns and other weapons are on display in the larger tobacco stores). This results in the general public not owning firearms. People that hunt do, as do people that collect guns. And that was exactly what I said, right? Restricted access to lethal arms.
And frankly, I'm quite content with that. Especially when people like you point out that weapons can be used for self defense. Man, that would be just the thing we need! Untrained people trying to shoot 'invaders' off their lawn! I can see how that worked on a ranch somewhere in the Wild West, but we live in a crowded, somewhat civilized 20th-century world now.
Plus, when do you think you'd be using your gun for self defence? If defending yourself would require bullets, you can count on your adversary wielding something way more dangerous than you own, not to mention his/hers ability to use it. I really don't think you'll be wanting to wave a gun in the face of danger, unless you're a cop or well trained.