This should be plainly obvious.
What point are you making? Other than perhaps unintentionally backing the pro-gun lobby idea that guns are just tools.
That if you're worried about the harmful effects of guns, don't discount suicide just because those people aren't harming you.
https://www.cdc.gov/nchs/fastats/homicide.htm
Homicide rate in EU is 1.7, US is 5.8 or 4.3 (Firearms only).
It's a culture problem. America has a violent culture.
It's weird to me that we so often discuss firearm violence without also considering the prevalence of other forms of violence; these are symptoms of an underlaying concern.
Go look at a heat map of per-capita gun homicides in the US. This is not a "national" problem. Communicating this has been very challenging for people who live in Chicago in particular - everyone thinks the entire city is a killzone, when in fact there are perfectly safe neighborhoods, and other neighborhoods that are a warzone. But if you were to only see the citywide statistics for Chicago murders, you wouldn't even leave the airport.