You are trying to downplay gun violence though? You're effectively saying that the saturation of deadly weapons in the country isn't a big worry "because those people didn't set out to commit a crime when they purchased their weapon".
Do you think the parents of the Columbine shooters set out to commit crimes when they purchased their weapons? It's not about the intent at the time of purchase, it's about the immediate availability to those who are capable of harm, which is literally every single human that owns a weapon.
Also, let's not say "you're more likely to blah". What aboutism doesn't really have a home here in this discussion, because you're taking things that include accidental / unavoidable deaths, to deaths that are 100% the result of choices made by humans to purchase a machine designed to take life with no alternative functions. Also, before I get lectured about weapons at all, I served in the US Army for 12 years, have lived very closely with weapons, and have a firm belief that all you need is a single handgun and a single, bolt action rifle as a civilian. If you're worried about defending yourself from the Government, that time has come and gone, those roots run deeper than weapons (IRS, infrastructure, utility service, technology, etc).
Civilian ownership of weapons is stupid full stop beyond a reasonable point, and America is so, so, so far beyond reasonable.