Very interesting article by Pipes. Thanks for posting. Belated WELCOME ABOARD!
The only reason Islam makes the rapid inroads into western society is because of the large liberal anti-Christian and atheist element present in it coupled with the lack of militancy of present-day Christianity.
Either group likes to see Christianity destroyed even if it means replacing it with Islam. In the end, they themselves will be forced to become Muslim. Being anti-Christian, their conversion will take place without a hitch.