This is the step that otherwise smart people fail at.
"We were afraid of danger X so we did Y to prevent it and turns out it was a waste because not only did X not get worse, it got better! To heck with Y!"
And don't consider, maybe, things got better for that reason?
This is "only sick people take medicine" logic.
If you're tempted down this line of thinking you need to consider: If nothing had changed or they got worse, would that have been the expected results? What then would be the expected outcome?
Comparative analysis at a minimum, not just to other societies with different norms but attempting at least to find pockets that didn't change as much or as quickly, what happened there and in other sub populations where factors varied.
Otherwise you're just someone complaining how things used to be different, better in any way that fits a narrative that makes you feel comfortable or righteous or whatever.