The article addresses both of your points. It's worth the read.
Yeah - I started reading it but decided to get my two cents in before the read. LOL
Actually, Bridgette Gabriel and Mark Steyn both make the points about demographics in Europe v the Muslims in their respective books. I went to a lecture in town about the Arab Mind and the military guy who gave the lecture made the same point but it seemed to go right above the heads of most attendees; it's all about the demographics.