As Chump mentioned, your thinking is all or nothing. Personally, I wouldn't care if every gun was melted down. But I share this society with other Americans who value gun ownership, for hunting, recreation, personal defense, collecting, etc, and I'm not about to impose my tastes/worldview on them in absolutes. There can be compromises that reduce these incidents without trampling on gun rights. And yes, I do believe increased minimum age laws, extended background checks, and a tiered licensing structure would reduce the frequency of these events.
https://www.rand.org/research/gun-po...nimum-age.html
Here's an interesting study that illustrates how more mass shootings occur (per capita) in states with permissive gun laws than in states with restrictive gun laws.
https://www.bmj.com/content/364/bmj.l542
But that said, prior to 2010, the incident frequency didn't seem to be influenced that much by gun control, aside from the 2002-03 e, which looks more like noise than anything. But after 2009-10, the trend is pretty clear. So what changed? The rise of social media and the proliferation of the smartphone (which has also correlated with an unprecedented rise in teenage depression). The modern media/social landscape, in my mind, is creating more depressive, disgruntled, isolated, and just plain angry people than ever before.
Look at something like the rise of Flat Earthers. I thought I've never see something like that happen. But you can find an echo chamber on the Internet to confirm whatever crank belief you have, which normalizes that belief. And troublingly, this includes radical beliefs that can lead to violent action. So following the logic, we have more depressed, angry, and alienated people out there than maybe ever before in the last century, which is something that doesn't mix too well with permissive gun laws. But how do you curb the influence of social media, crank websites, and the like without a significant alteration of the 1st amendment (which is a much more important amendment than the 2nd amendment)?
Culture isn't static, so the laws themselves have to be dynamic as culture evolves (or devolves). It really doesn't make much sense to consider an 18th gun rights law as stone etched gospel in a 21st century world.