The best we can hope for is that the convulsions will be short and sharp and no foreign power takes advantage of our convalescence. In 1945 the Germans learned a hard lesson about fascism, and learned it well; we can hope that Americans will learn something too, and at less cost.
Strongly disagree with "most".
Margins on many recent elections have been so low they'd be too close to measure a generation ago.
I think that's relevant, a hard check on the idea that an overwhelming majority of Americans are getting what they voted for. No.
(FWIW I agree with your other points. I miss the era of Walter Cronkite consensus. Not clear that it was better. But less terrifying.)