A nation of immigrants that doesn't like immigrants

The border.

Just saying the two words can start an argument.

We're a nation of immigrants who don't much like immigrants anymore.

What happened to us?

Give me your tired, your poor, your huddled masses yearning to breathe free, the wretched refuse of your teeming shore. Send these, the homeless, tempest-tossed to me, I lift my lamp beside the golden door!

Tu…