"We are being invaded"

It's not about who - or even how many - should come to America: it's about whether we are a nation.

There was a time when a debate about immigration was about jobs and who we need to do them; about assimilation of new people how our melting pot is supposed to work; or even about how we might save some folks from oppression in their home nations - for example, Vietnamese, Bosnian or Tutsi people.

Today, none of those debates are meaningful. Our border i…