What should I ask Eric Kaufmann?

I am doing a Conversation with him, no associated public event.  I am a big fan of his book WhiteShift (perhaps the best book of the year so far?), here is my review.  Here is Wikipedia on Eric:

Eric Peter Kaufmann (born 11 May 1970) is a Canadian professor of politics at Birkbeck College, University of London. He is a specialist on Orangeism in Northern Ireland, nationalism, political demography and demography of the religious/irreligious.

Eric Kaufmann was born in Hong Kong and raised in Vancouver, British Columbia, Canada. His ancestry is mixed with a quarter Chinese and a quarter Latino. His father is of Jewish descent, the grandfather hailing from Prostejov in the modern Czech Republic. His mother is a lapsed Catholic; he himself attended Catholic school for only a year. He received his BA from the University of Western Ontario in 1991. He received his MA from the London School of Economics in 1994 where he subsequently also completed his PhD in 1998.

Here is Eric’s home page.  He’s also written on what makes the Swiss Swiss, American exceptionalism, and whether the Amish will outbreed us all.

So what should I ask Eric?