Examples include: more equality; more opportunity; less democracy; reducing gun accidents; less stress; and less teenage parenthood.
Many of these problems have been around for a long time. For example, the US has long been unequal and long been a democracy. Teenage parenthood has actually been falling. The fentanyl epidemic is relatively recent. You cannot explain a change by a constant.
I would support more intellectual humility and attention to the evidence in thinking about this terrible problem.