“This is an immoral country,” she says. She has undisguised contempt for the United States and for its people. That should worry you and not just because Omar is now a sitting member of Congress. Ilhan Omar is living proof that the way we practice immigration has become dangerous to this country. A system designed to strengthen America is instead undermining it. Some of the very people we try hardest to help have come to hate us passionately.

Maybe that's our fault for asking too little of our immigrants. We aren't self-confident enough to make them assimilate so they never feel fully American. Or maybe the problem is deeper than that. Maybe we're importing people from places whose values are simply in antithetical to ours. Who knows what the problem is, but there is a problem and whatever the cause, this cannot continue. It's not sustainable.

No country can import large numbers of people who hate it and expect to survive. The Romans were the last to try that with predictable results.

So be grateful for Ilhan Omar, annoying as she is. She’s a living fire alarm, a warning to the rest of us we better change our immigration system immediately. Or else.