That makes sense from an outside perspective, sure. But your criticism was about Americans turning a blind eye to the "cultural" problem.

Within the US, blaming gun violence on "culture" means pointing out that 13-17% of the population commits (and are the victims of) 55-65% of the murders. Blaming "culture" means pointing out that mass shooters are predominantly white, they also account for less than 1% of all murders.

The Americans broadly adopting your "cultural problem" argument are MAGAts. Normal Americans are turning a blind eye to that viewpoint, rather than being lumped in with those racist pricks.