White supremacy hasnt infected every aspect of American life because of small, low IQ pieces of shit though. Its persisted as long as it has because it has some wickedly intelligent proponents of it. Its a trick of White supremacy to make you think its most dangerous representatives are just extremists criminals.
I agree with you 100 percent. But still, there needs to be a way of engaging with, and defusing a person of this level, before they meltdown, and also a way to intercept, and hopefully correct them before they get to this point.
We don't have a clear mechanism for doing something like this, as it seems early engagement is always cast as an assault on the persons free-will, rather than a way of protecting the people that they could hurt in the future.
To be perfectly honest, I think that without a lot of help from "regular" white americans, stuff like this will just keep happening, since it's easy to hand-wave away as a single incident, but even that hand-waving is a part of the insidious nature of the gross ideals that you're talking about.