^^^^^THIS^^^^^Accountability is what changed.
Criminals are no longer people who make bad choices and subject to repercussions, they are victims.
Children are no longer subject to authority. Those issued a disciplinary action at school will have a helicopter parent suing the school board.
Parenting. Far too many want to be their childs best friend. Sometimes it's OK to discipline a child including corporal punishment if needed.
We have 2-3 generations of people now who think the world owes them something and are convinced that the universe revolves around them and their feelings. 40 years ago there were no mass shootings because people had already experienced consequences for their actions and would not be subject to more. Pedophiles/rapists/murderers were sent to prison or shot, not released for counseling. The world was much safer when we didn't try to make it a sterile safe place.