Comparing other countries gun death rates is pointless because there are so many other variables.
Class
Gangs
Drugs
Population density
Police coverage
General morals (aka, the current ghetto mentality that puts almost zero value on a human life. I’ll kill you to rob you of $20).
Besides that, you will NEVER get illegal guns out of the US now so even if the comparisons were legitimate it’s a moot point. There are too many out there and they are far to easy to get, even if you have to go outside the country for them. By making gun ownership criminal you insure that only criminals will own guns.