Nasor, what do you want? A handgun ban to reduce the number of stabbings? Just how can banning guns effect the overall murder rate? That's absurd. Changing firearms laws will cut out firearms related deaths, that's all.
The murder rate in the USA falling. Well fluctuating would be a better term.
Murder rates reached a peak in the 80's, came down, went back up, and are coming down again. I think the variation is fairly hard to explain (although some link it to 'prohibition' periods, first booze, and then the 'war on drugs'), but the general level is down to lax gun laws and widespread gun ownership.
Relative crime UK vs USA. Well, yes, we have slightly elevated levels of crime for robbery and assault than you do in the USA, but your murder rate is five times ours. So, if someone in the USA gets robbed, and then murdered, does that count as one crime, or two? I'm guessing one, so in the uK, we get robbed, end of story. In the USA, you may get robbed, then murdered, and the robbery isn't necessarily recorded as a crime itself, but as the cause of the murder. This would detract from the overall incidences of robbery, wouldn't it, giving you a lower number?
Anyway, if DGU stats are used, America is still more dangerous than the UK, if not, well, I'm far less likely to get murdered, and if someone tries to rob me, chances are that it won't be at gunpoint, so they'll get nothing, and I won't get hurt.
Question is, do you think your murder rate is acceptable?