> This mechanism breaks down when your peers don't hold common values. If nobody agrees on what right and wrong are, you just find different peers until somebody thinks that what you're doing is right.

Perhaps because your peers are recent immigrants who are culturally and linguistically foreign to you, and are physically here primarily because the place they are originally from is terrible, rather than because they are actually interested in joining your community and sharing its values.

So you think that people who have repatriated themselves would not have any interest in adopting some or all of the values of the place they have gone to? That seems really wrong at a lot of levels, though people rarely adopt all of the values of the place they move to (whatever the circumstances).