The important thing is to cut through the right wing lies.
The shooter was a right wing gun nut, radicalized by the right. Only the right needs to be issuing a groveling apology to the USA. Not just for creating the violence, but for lying about it now. I'll bare my ass for the Trump cultists to stoop down and kiss, if they need a symbolic representative of a normal patriotic American. That will be a good start, but they need to follow it up with counseling, to discover where they went so wrong, when they decided to be such awful people who perversely get off on violence.
Almost all political violence comes from the right. Anyone saying otherwise is lying because they love the right-wing violence. The reason they excuse their violence is because they want to see so much more of it.
And no, it's not debatable that the right is responsible for almost all the violence. Not by any honest person.
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Ideology behind 18 fatal political attacks identified by Reuters since the Capitol riot
Right wing - 13
Not partisan - 4
Left wing - 1
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And as I will point out, Oklahama Citty. 168 dead, including many children, at the hands of the right. The body count of the left isn't even visible when commpared to the giant stack of corpses left by right-wing political violence. Not surprisingly, the righties here all pretend that their most glorious terrorist attack never happened.
And yes, I know some of the righties here want me dead for telling the truth like I do. I'm okay with that.