I think the French police and judicial system are about the same. They just aren't discovering the innocents they've put in prison because they don't have wide-spread, well-funded initiatives like the Innocence Project to do that work.

Remember, you can't really "look at the stats" when it comes to how many innocent people you've imprisoned until after the fact. You only know the count once you've actually put in the time to find innocent people in prison. My claim is that France is not doing this, so you can't really say they're 6x better. Unless countries are exerting the same effort to root out innocent prisoners, it's impossible to tell if a lower rate is due to an actually lower occurrence, or if it's due to a lower rate of discovery.

My original point was that I think all countries have an "imprisoning innocents" problem, and all countries have a racism problem. It just looks worse in the US because we're actually bothering to do the due diligence.