The only hole in your argument is that under Trump, the US prison population hit a 19-year low. At least according to the DOJ.
https://bjs.ojp.gov/content/pub/pdf/cpus1718.pdf
You also forgot to point out in your message, that Trump passed criminal reform that resulted in the release of many African Americans who were serving disproportionate sentences relative to whites. Something he received praise for from both the right and the left overturning many of the injustices put into a sponsored by Biden and signed by Clinton.
https://www.justiceactionnetwork.org/news/president-trump-signs-major-historic-criminal-justice-reform-bill-into-law
Don't you hate it, when the world is not how you wish it were?