I agree somewhat....just don't really feel it's all that feasible....part of what increases fear and prejudice is the inability to relate to another group. What happens when we do decide we "dun got ouwa shit tuhgedda!"? Do we reassimilate into a society which has found a way to get along WITHOUT us?
This is kinda similar to what I found in Nicaragua..(Bluefields) They are pretty much isolated socially/economically with a very distinct cultural identity.