Islam is not nearly as established here as it is in western europe so it hasnt become an issue yet. Like the author says, once the muslim population gets big enough they will start agitation; once they hit a critical % of the population, they will actively work to subdue the non-muslim pop.
britain and france in all their liberal, pc wisdom, opened the doors to third world muslims. At first they were quiet. But they kept coming, and lo and behold they now have muslims rioting in masse, waving death to the west type signs, burning sections of paris, and beheading soldiers on london streets. And as their numbers increase while the native populations decline, they will aggressively take over.
The irony is brutally hilarious. The pc-addicted libs will continue to preach mass immigration and 'tolerance' for islam even as they openly spite them and gradually take over their cities. Once in charge, they will not show the same tolerance.