Agreed. Maybe the reason we're sort of numb to horrible things now is because we grew up under a cloud of horrible. Sure, we had great music and good drugs, but we still lived in a culture of fear.
As to the last things on my list, they were not only in the streets, but had also taken over Central Park, making that quiet, green haven, in the midst of concrete, unusable for NORMAL people and children. They WERE an invading horde of the brain dead and unwashed; taking over parks ( Central and Washington Square ), my neighborhood, Wall Street, college campuses, and other areas of Manhattan. And for all of those here, who talk about a "revolution" and "blood in the streets", that was a time when it was actually happening...but most probably shan't ever again, in our life time.
No books and no old newspapers, and no old magazine articles will ever be able to convey those times to those who didn't live through them; nor, probably, to those who were somewhat removed from the centers of the turmoil.