I don't have any reason to believe that this would fail as a system to enforce order

It wouldn't fail on order.

It would fail to respect liberty.

Eventually, communities consider dealing with people outside their community.

History shows quite convincingly that communities with strongly enforced cultural norms inevitably choose a very specific way of "dealing" with outsiders.

I remember the 90's. The word Bosnia will always be a synonym for "fucking slavic neighborhate shitstorm" to me.

I don't have any reason to believe that this would fail as a system to enforce order

It wouldn't.

It would fail to respect liberty.

Eventually, communities consider dealing with people outside their community.

History shows quite convincingly that communities with strongly enforced cultural norms inevitably choose a very specific way of "dealing" with outsiders.

I remember the 90's. The word Bosnia will always be a synonym for "fucking slavic neighborhate shitstorm" to me.