Well, I wasn't try to imply that the refugees would win, and yes, that's entirely the point because the scenario qualifies as a breakdown of human civilization that Gates doesn't acknowledge. Even if some people will still be able to have their Sunday brunch while their country's borders are bathed in refugee blood.
I think that for most of Europe the 1939-1944 period was mostly living in the dark ages, but yes, you could still get tickets for the Rockettes at the Radio City if you were a middle class New Yorker.