I dunno if I agree with this, people dont need more isolation that just encourages reactionary thought, they need more community.
Also, if I believe the way the US enacts justice is bad and how we do not restore criminals is bad, I cant help but notice the way we throw people away is similar. I think that's pretty poisoned thinking in itself.
Some people are lost causes sure, you know when you have a lost cause, but you can show good values by showing those values worth to the people around you.