Not wanting to associate with others and thinking they should be removed from their homes because of their race is pathetic and no explanation is required. Racism IS pathetic under every circumstance. Enforcing an ethnic identity is pathetic because it leads to division and hostility.

Division and hostility is inevitable. Even in the most Utopian Communist nations which tried to destroy ethnic divisions it failed to last because human tribalism is unbeatable.

And you do know the United States is also doing very well despite its racial diversity? Canada isn't in a bad position either.

Their doing well because both these countries are still relatively homogeneous racially(white) for now. I highly doubt these countries will do that great when it becomes actually diverse racially.