I agree with everything you've stated in regards to the U.S. over the last seven or so decades. Actually I want to add something to your initial observations that I feel is extremely pertinent, and has equally contributed to the 'us/them' syndrome: religion in general, but particularly the evolution of the Pledge of Allegiance to include the words 'under God' in the early fifties.
I remember discussing ( I should say questioning ) this issue with my father over a game of chess when I was only in the 5th or 6th grade. It was 1970 something or another. We lived in England, so of course school history was British. My father was teaching me American which coincided with the British I was learning over daily games of chess ( when he wasn't deployed ).
Anyway, while many contend the modification 'under God' was a dangerous revision to the melting pot of America, he said the adoption of the pledge in general was far worse. It has a very ugly history that the majority of Americans are clueless about.
Bellamy's intent was to define “true Americanism” from the infiltration of immigrants pouring into the country. His opinion was that assimilation equated a lowering of our own ( white ) racial standards.
Therefore, the very pledge is based on racial separation enhanced by religion. Not just any and every religion reflecting the diversity of America; but, the very doctrine which caused Puritans to migrate in search of religious freedom.
Thus, in essence, they became the very monster from which they had escaped by persecuting those who believed/practiced differently, i.e. - witches, et al.
The wheels of historical repetition have been in motion for decades now, enhanced by the points you present. The recognition of corporations as individuals with lack of accountability totally blew me away, and was the driving force behind the remainder of issues you've listed. In retrospect, it's been like falling dominos in a game we're bound to lose.
I too am more interested in what happens now ( though recognizing what brought us to now is important ). We are on a precipice, a razor's edge, but I am holding out hope that such a revolution will be distant ( if at all ) vs. tomorrow. As long as it hasn't happened yet; there is some hope it won't.
I must admit, you have me wanting to delve more into ancient Roman history!
Perhaps after these two current classes ( and cat ) have kicked my ass.