Youi have to be very careful with the number you quote for the UK since they basically cook the books and the homicides are not reported in a straightforward basis like the FBI does here. Here is an article you can read ↗ that explains the process.
Also, while homicide by firearms is low, the homicide by knife and other objects is high to the point hat the mayor of London has proposed banning knives. ↗
A friend of mine from Australia, not a conservative at all but a well educated individual who owns a software firm and also publishes a blog about holistic medicine and wholesome foods and is a big opponents of big corporation and pharma, just wrote recently that the gun control and gun confiscation experiment down under had very bad unintended consequences. The number of home invasions and othre crimes has increased exponentially and criminals now break into homes and commit crimes with impunity because they know home owners no longer own guns and obviously criminals do. Something to think about.
Did you notice that just about all the recent mass shootings in this country were on areas designed as "gun free"? Something else to think about.
I read that if you take the 5 cities in the country with the highest rates out of the statistics (St. Louis, Chicago Detroit, New Orleans and Baltimore...if I recall correctly) the homicide rate for the country as a whole drops dramatically to levels comparable to other similar developed countries. Something more to think about.
I believe in rational gun control that requires training and permits to own guns and a comprehensive and up to data registry of those who lose the privilege such as but not limited to, anyone convicted of a felony, but it is easier said than done since the implementation of such as system would be nearly impossible. Arbitrarily confiscation guns, like many politicians are proposing, is not the answer; responsible ownership through education is.