At least one American city has sensible gun laws

[Starboard Tack]

46. And the intentional homicide rates?

Hard to fudge these stats.
4.8 per 100,000 in the US
1.2 per 100,000 in the UK

But if you advise people to have a shoot out with 3 armed meth heads, over a cellphone and some plastic, then those stats are unlikely to improve on your side of the pond.
Violence may be bad, but rarely leads to death.
If less crime is more important to a society than fewer homicides, then you're in the right place.
It's a sad indictment of a society, when folks kill each other over the crap they buy at Walmart.

You can troll the web for old news articles (2008) about politicians fudging stats in an attempt to appease public outrage over knife crime. If that's all you've got to bolster your recommendation to let folk carry guns, then your coming up mighty short.
And the other link is a joke.