The USA seems to be one of the most inhospitable societies on the planet, and these latest tragedies add nothing to the idea that they are getting any better.
There is a great film called "Mississippi Burning", with Willem Dafoe and Gene Hackmann, which shows the conflict between both coloured and white 'Americans' in some savage detail in the 1960s.
It reflected the persistence of the 'colour bar', or apartheid American style.
No lessons appear to have been learned, and almost no progress seems toy have taken place in their society overall. The ease with which they seem to resort to using weapons, and justify their use is insane.
I wonder how the true 'Native Americans' view what has unfolded in what is undoubtedly their land over the past decades, or indeed the past century and more.