The other countries cannot be compared to the US regarding gun ownership and use, period.
Find another country the size, and the multinational demographics of the United States, that comes even close, that also has FIFTY independent state governments.
The US is the THIRD largest country by population and the fourth largest by area. Of the four, only two are non-communist countries or communist dictator led countries. The diversity of cultures is unmatched as is the geography/boundaries; political-constitutional makeup.
What has all that to do with my post you quoted re gang related shootings and teen deaths not being ok either ???