When John Oliver went to Australia, he left out that the Aussies had their own "wild west"/Cowboy culture. This is exemplified by Ned Kelly and the rest of the bushrangers.
In fact, as the Oliver clips point out Aussie gun culture was amazingly like the US (without fear of Indonesian Invasion), yet they managed to get gun control and the world didn't fall apart.
Of course, we can enjoy the freedom that we have in Somalia, Yemen, Afghanistan with more guns. In fact, In order to find nations similar to the United States and Mexico on guns, you have to allow every country in the world into the data set, even ones with ongoing wars:
