I dont think prison is an appropriate term. Although the prison system in the US is arguably a gruesome torture industry, this has much more similarities with the german concentration camps. The chaotic, inhumane housing of masses of people in the worst of conditions with no regard to human rights and sometimes even active participation in torture and murder.
Btw concentration camps were (in the beginning) not where they primarily killed people. They detained them under very similar conditions and a lot of them died there a most gruesome death but they had "Vernichtungslager" as well which had the primary use of industrially killing men, women and children, burning them and or burying them (sometimes alive).
This is fascism. There are no two ways about it. We are watching the beginning of another reich. Capitalism is pulling out the knives.