Mark Steyn, a Canadian journalist and columnist widely read in the United States and Great Britain, whose current book, "America Alone," is an alarming portrait of a rapidly rising Islamic Europe, has served his cause better than he could have hoped. Not only does his book convincingly demonstrate the catastrophic demographic consequence of Europe's descending birth rate and ascending Muslim population, it did one thing more. The only review of it that I could find in Canada's largely liberal print media showed unmistakably that the liberal Western world has no solution to the problem. It is utterly baffled. It doesn't...