Gun violence in the US is a major problem and our gun ownership and sales policies are at the heart of it. I've considered moving my family away from it long before this horrifying outcome.
The murder rate for whites in the US (i.e. the rate at which whites are murdered) is 2.5 per 100,000 much lower than the overall murder rate of 5.2 per 100,000. This is still higher than most of the West, e.g. 70% higher than Canada. But not the "extreme levels" you referred to earlier.
And you didn't mention guns before, I'm assuming you don't really only care about violence that comes out of the barrel of a gun, and you're just adding this now to avoid discussing the link between race and crime.
I don't view a ton of difference between extremist terrorist conscription and, say, gang violence.
I think many of the same triggers are exploited. And you see those same triggers at play in traditionally white "militia" folks as well.