You're really really skewing your facts with the Australia and UK examples. Australians do not nor did they ever have a right to own guns, and even before the 1997 buy back program guns were heavily regulated and only certain groups were allowed to have them; such as for occupational reasons. Moreover in Australia semi-automatic and pump-action weapons were targeted with the buy-back program, while occupational groups were exempt. The myth that "violent crime increased after gun confiscation because it went up by blah blah blah percent," is also disingenuous; it does not tell a full story at all. There are other factors at work, such as population increase (of course crime rates go up the more people there are, this should be very common sense). There is also ample evidence that in Australia the murder/violent crime rate is essentially flat, only seeing a slight up tick after the gun ban which then returned to the "normal" rate. Here
http://web.archive.org/web/20090417100922/http://aic.gov.au/publications/cfi/cfi003.html we can see actually see that the homicide rate
dipped after the gun ban. Moreover as we can see, fire arm related homicides also went down.
As far as the UK between 1990 and 1996 there were 10.9 and 13 homicides per million. After 1996 the hand gun ban the rate reached a peak of 18.0 per million in 2003 and the British government hired 20,000 more police officers. Now the homicide rate is lower than what it was pre hand gun ban.