>The suicide and assault rates, including school shootings and other mass shootings, has only increased over time, with more deaths every year.
Citation needed. A cursory look at Wikipedia for suicide rates suggests that they took a dip in the late 90s but otherwise are flat from the 80.
Violent crime has been trending down for decades.
https://en.m.wikipedia.org/wiki/Suicide_in_the_United_States
https://www.statista.com/statistics/191219/reported-violent-...