I would guess that she’s trying to separate the voters from the representatives, so that when someone calls out a republican politician for being racist, they have a harder time convincing their voters that she was calling them racist as well.
Right now it seems like people see their political party as their identity, there are both democrats and republicans who do it but I’d say it is far, far more common with republicans.
You can, and should, hold your representatives accountable when they do bad shit, regardless of whether you voted for them or not, and if your party starts standing for things that are worse than another party then you should change who you vote for.
It’s a long road to get back from this division in the US, but I hope there’s a future where it’s possible.
I think Biden still believes that things can swing back in the midterms or next presidential election. I don’t think he realizes that this might have been the last election that was possible to win.
If he does something drastic, he’d probably hand even more popular support to the Republicans in general and to Trump in particular who would play victims as much as they could.
If he does nothing, it might be the end of democracy, not just in the US but in most of the world. But he will have “accepted defeat gracefully” and considering he won’t live to see the worst of it, I imagine that’s all that matters.
Edit: Just watched his speech. Nope, he thinks this is business as usual.