the second point, perhaps more important, is that your view of U.S. - from your far-off expatriate's perch - is nearly as distorted as, indeed, Sarah Palin's. all the things you named - segregated cities, rampant inequality, and so on - undoubtedly exist, sometimes with awful frequency, but they are hardly the entire picture and to claim otherwise is to surrender to all the worst aspects of this country and those who would enshrine and further them.
no they are not the entire picture. i do believe the ENTIRE picture would be much more grim. how about the pandemic normalized racism toward the invisible Mexican low wage labor force? how about the millions of impoverished descendents of former slaves who live in economic bondage and with conditions much worse than their ancestors? how about under age child workers which picks the fruit sold in super markets? none of these things see mention in newspapers, ever.
of course there are good things that happen in America. you should see me defending Americans and American culture to Europeans. but that doesn't change the system which is designed to enforce and propagate social injustice, injustice which is routinely ignored/hidden/normalized, or the, as you say, "galling" hypocrisy.
and why does it matter at all from where i type? i lived in America for 20 years and i actually feel, far as my personal identity is concerned, probably more American than anything else at this point in my life. so i can be typing from a submarine under arctic ice, and my present location would not detract one gram of truth from my words.
and the truth that my eyes see for themselves, is simply a lot more fucked, on so many different levels including structural and institutional, than most people care to acknowledge.