Not only is this person incredibly short-sighted and probably real xenophobic, they're also wrong.

The Constitution applies to Citizens, not guests and trespassers.

The Bill of Rights applies to anyone within U.S. Jurisdiction, not just citizens.

You are badly mistaken if you think changing the standards or requirements for immigration is illegal, or if culture fit and perceived loyalty are not and have never been metrics.

It has been attempted before. It's been an abject failure and a stain on American culture every single time it's been attempted.

Terrorists are symptoms, not the disease. They extremists will kill homosexuals and apostates, the moderates want to get the Government to do it for them. Lets not invite a culture into our democracy that seeks to turn the State into these terrorists for them, mmkay?

If by "moderate Islam" you mean Muslims from countries like Bangladesh, Indonesia, India, and Turkey (which make up about half the world's Muslims), I don't see any push from those countries to get their government to kill "homosexuals and apostates." I don't think you fully understand radical Islam.

Would you feel comfortable if you were homosexual living among those of a culture that held your life in the same regard that we hold the lives of unborn fetuses?

No I wouldn't. So thank God no one is suggesting that I have to.