This time it has to be China also, not only Europe (and mostly not Europe, actually). Then, if the retaliatory nuke does not destroy everyone, you can again have the privilege of feeding off the rest of the world for a decade or 2 with no competition. I wonder if any kind of tech breakthrough can lead to the same advantage that could be shared by a nation and not only a few rich. Seems the answer is no. And the minorities issue is unlikely to fly again, as white people are no longer the overwhelming majority, the mix is way more diverse.