That's not entirely true, you can own a gun in the UK- most people can't own concealable handguns, but sporting guns you can. The guns that are allowed are tightly regulated.
The result: very low gun crime. I've often thought the US should follow a similar policy. Most gun crime is committed by people with concealable handguns. You don't have to ban guns completely, you can have a right to bare arms, maintain an armed citizenry that can protect itself, without completely banning guns.
If you ban handguns, you eliminate most of the crime.
The purpose most people state for right to bare arms, is so that the government can't run rough-shod over the people. If that's true, if you're going to mount an insurrection, you're going to want to do it with rifles, not small handguns.
This, guns are controlled in the UK, not banned. You need to be licensed and firearms registered, just like cars which are per use, less dangerous than firearms.
Also when it comes to modern revolutions, you are pretty much entirely dependent on the military, in part or in whole, being part of the revolution. Without this you only end up with situations like Waco which only end in the favour of the government.
You're also entirely correct about guns and cirme. When guns are controlled, crime is also reduced. I live in the UK, the worst thing I worry about are my car being broken into when I'm not there. If someone were to attack me with a bat or knife, I know how to defend against that unarmed (I also know how to take a gun off someone, but that is mainly for shits and giggles). Although conventional wisdom says, if you're in a knife fight you're going to get cut I can say I prefer the notion of having to nurse a few lacerations compared to a gunshot wound. Much higher chance of surviving a stab wound than a 9mm, especially since you can block a knife with your arm and only get a slash there.
If I lived in a place with an abundance of guns I wouldn't be so unconcerned with the potential for being attacked... And having a concealed weapon is no defence when an attacker will already have a gun pointed at you. As any shooter knows, you always treat a gun as being loaded and locked (yep, I've owned guns). This is because the criminal will get the jump on you and it's not like you can say "excuse me Mr Crim, could you not shoot me whist I pull my own gun out", fuck no, if even look like going for a weapon you're brown bread mate.
Finally there will be gun control in America.. about 10 seconds after the rich feel threatened by the peasantry. That's more or less much how it happened here in the UK in the 1900's and 20's, the irony is we aren't any less free than you (we just have less crime and fewer gun deaths). Go back and see my point about revolutions and Waco, your AR15 is no threat to criminals or the government.