Nothing new here, except that this is being said by William Pfaff, a NY Times staffer writing for the Uber-left International Herald Tribune.
Maybe the leftist elite are starting to wake up. Probably not, but this is a mildly hopeful sign.
Europe has forgotten the lessons taught to them by the Muslims in the period from 900AD to 1815AD when successive Muslim invasions were turned back.
Now the Muslim point of view is that they are trying to 'recover' lost Muslim lands such as Austria, Spain, Portugal, the Balkans, & etc. Recent fatwas also state that anywhere a Muslim has settled is now "their" land.
Make no mistake that Islam is on the march and they are the next threat to world peace.
Most European countries have distict idiosyncracies that make it hard for immigrants to integrate. For some reason, both the US and Britain have been successfull in integrating immigrants. Immigrants in the US that I know love this country. Perhaps it is the quality of the people coming. Hispanics are socially conservative and Christian.
Europe can go to hell for all I care.