Thousands upon thousands. By some estimates upwards of 10% of incarcerated individuals. The situation is just accepted. The general consensus is always that locking up too many people is better than than too few. It is on defense attorneys to check on the system.
Sadly, that varies enormously with the social status and wealth of the accused.
Also, the Innocence Files is a must-watch on Netflix [3].
[1] https://innocenceproject.org/
Sigh.
Now it’s important to understand what is meant when people reference incarceration numbers. A lot of these are people awaiting trial on charges they will be found guilty of but receive minimal sentences via plea bargaining. Another large portion are illegal immigrants that are awaiting processing for either integration or deportation.
So if you erase those 2 groups it’s mainly violent people. There’s an abundance of violent people in the USA compared to Western Europe and certainly Asia I’d say.