Are the school shootings in USA a result of the end of the Bretton Woods system in 1971??, page-3

Here are some more interesting stats. of mass shootings from 1982 to March 2023

I think this is general mass shootings, not just school shootings.

There seems to be a bit of a hockey stick effective suggesting cumulative problems after a previous event

https://www.statista.com/statistics/811487/number-of-mass-shootings-in-the-us/

Another interesting point is of the 139 killers, 135 where men.

So is this the result of a cultural change. Do men feel disempowered including male teens and desire to kill out of frustration ??