> The US had a highly moral mission at the time of its founding;
I guess you are referring to the principle of "no taxation without representation." Fair enough, but I don't find that consistent with twoodfin's comment, to which I am indirectly replying, that "America was a radical moral project when it was founded."
> Neither is thinking of the Nation as an aesthetic and moral project to advance the state of mankind under God, or even Science, or Human Rights, which was how its founders explicitly thought and wrote about it.
That is certainly how they wrote about it, but the point that suzzer99 and I are making is that they did not walk the walk. It's one thing to write fancy documents about all men being created equal, and it's quite another to actually emancipate the slaves or stop genociding the natives.
> The left wing sees the US as a fundamentally illegitimate
I have a lot of lefty friends, and I don't know anyone who thinks anything remotely similar to that. Criticizing the ethical failings of a country in the hopes of improving it does not amount to a statement if illegitimacy. And I'm pretty sure that elected leftist politicians don't consider the government that they form to be illegitimate.