But you definitely need to identify lynch mob leaders, squeeze them for information, and then kill them about as quickly as you can. Those people are unlikely to do anything but harm in the long term unless you have material security and a genuinely sophisticated program for rehabilitating people.

You need more than that. These people would become warriors in a new gladio. Every single one of them that you release would need to be monitored for the remainder of their lives, you can not trust rehabilitation alone.