A quick google search brought up some folks challenging Steyn on Europe:
http://www.amnation.com/vfr/archives/003117.html
***And notice why Steyn views an Islamized Europe favorably. Not because it will be better for Europe and Europeans, but because it will make Europe "easier for America to deal with." In other words, an Islamized, and presumably weak, Europe will stand less in the way of America's global ambitions than does the present Europe. In Steyn's view, continents, nations, and peoples have the right to exist only insofar as they do not oppose the American democratist empire. Even our own civilization has the right to exist only insofar as it does not oppose the American democratist empire.***
http://forums1.sonymusic.com/eve/ubb.x/a/tpc/f/486103162/m/3661060362/r/7561045462
***And I always get a good laugh from statistics like his "40% of the EU may be Muslim by 2025." He's obviously factoring in an acceptance of Turkey into the EU -- a highly dubious assumption -- but he's also obviously trying to create the impression in readers' minds that France, Germany and Britain will be 40% Muslim within twenty years.
Which is, of course, beyond laughable and beyond contempt.
The current population of the EU is 459,938,780 (link). The TOTAL Muslim population in the US, Australia, and Europe is about 20 million (link).
Let's pretend those 20 million are ALL in the EU, just to give Steyn's scarifying the best chance to succeed. That makes the Muslim population of Europe currently 4.3 percent.
Let's also assume that the white folks of the EU have zero population growth.
Even with acceptance of eighty million Turks into the EU, you still need another 213 million Muslims to get to a 40% Muslim population by 2025.
Let's get some perspective. 213 million is about the population of Indonesia, the largest Muslim country in the world. It easily exceeds the population of Pakistan. Steyn is trying to tell us that the equivalent of ONE IN FIVE MUSLIMS CURRENTLY IN THE WORLD will move to the EU by 2025, or have their countries accepted into the EU, or be bred from the currently scary population of 4.3 percent.
That is, of course, so very stupid. So very racist. So very Steyn***
http://austinbay.net/blog/index.php?p=98
***I don’t underestimate the French and German peoples’ capacities for change, either, especially when challenged at home. Yes, I know about Dutch emigration. I also read about a building Dutch anti-Muslim backlash– there are two trains running, neither look good. That’s why I think what will happen in Holland is something in between, but concentrating on a “re-birth of western values,” controlling immigration, and focusing on integration for the immigrants it allows. (In German Der Spiegel says Joschka Fischer has finally lost his teflon because of the visa scandal– a step to controlling immigration in Germany–and getting rid of the Old Reds of ‘68–see one of the early comments in this thread.)***