The Death of the West?

Mark Steyn has a great column in the Wall Street Opinion Journal where he highlights the possible future consequences of Western culture's lowering birth rate, its love for social welfare programs and its complete tolerance of those who are "cheerfully intolerant."

Highlights:

What will London--or Paris, or Amsterdam--be like in the mid-'30s? If European politicians make no serious attempt this decade to wean the populace off their unsustainable 35-hour weeks, retirement at 60, etc., then to keep the present level of pensions and health benefits the EU will need to import so many workers from North Africa and the Middle East that it will be well on its way to majority Muslim by 2035. As things stand, Muslims are already the primary source of population growth in English cities. Can a society become increasingly Islamic in its demographic character without becoming increasingly Islamic in its political character?

This ought to be the left's issue. I'm a conservative--I'm not entirely on board with the Islamist program when it comes to beheading sodomites and so on, but I agree Britney Spears dresses like a slut: I'm with Mullah Omar on that one. Why then, if your big thing is feminism or abortion or gay marriage, are you so certain that the cult of tolerance will prevail once the biggest demographic in your society is cheerfully intolerant?