I probably have visited the city about 20 times. The only ones lately are because of business and a family Thanksgiving. The city is not the same as it used to be. At an event at the Moscone center last year, besides flying Old Glory and the California flag, they the rainbow flags (6 or 7?) flying at equal height. It was a projectile vomit alert.
NO city is as good as it was pre-’60s. The JFK comment was pretty apt. Baltimore was once a GREAT city. Mom still remembers it that way, so do her siblings. I was born too late, but then I didn’t have to experience the total heartbreak of the break-downs.
BTW, if you need a specific time for The Change, you can say it was the ‘68 Riots.