You cut off the last 10 years of the chart, and you used total population instead of rate (meaning the number will go up anyway as population climbs the exponential curve).
Here's the chart with both issues fixed, data from the Wikipedia page I showed you (most recent data is in their citation but not much different from 2021 when I looked). This is population in prison per 100,000 people:
So like I said: Huge spike from 1980-2000, then peaked in 2008, then coming down since then. Which, sure, it being as high as it is is a fuckin problem. It's a huge problem. But you have to understand the problem to solve it. Just saying "IT'S GETTING WORSE, IT'S ALL GETTING WORSE COPS ARE KILLERS" is not conducive to understanding and solving the problem. In my opinion.