I don't know how old you are, but the America I knew and loved disappeared in the middle 1960s. Cultural Marxism has only intensified since then. I think things can't get any crazier but they do, daily.
You are right,it started in the sixties and the decline progressed from there..
I loved the fifties,yet they seem to be the butt of jokes all the time. Personal responsibility reigned,along with a good dose of “Mind your own business”.