“At first blush, Biden’s segregationist riff is disturbing.”
Mr. Biden made no segregationist riff. His riff was about working with those whom you disagree with.
“a subject Biden should be trying to avoid: his antiquated record on race.”
My reading of that record is that he was one of the leaders in the fight against racism. Perhaps some examples of this ‘antiquated record’ would provide some credibility to your statement.
It’s true that Mr. Obama ran into a brick wall of Republican obstructionism. Does this mean that Democrats should start throwing bricks?
You do have some convincing points about the loss of political cooperation in America, and you seem to argue that we might as well adapt to it. Anybody who accepts your arguments would be wise to start stocking up on guns and ammo.