Almost 50% of global wealth is owned by nearly 1% of the population. I'm sure there are different variations of this trend, but the point is still the same: Fewer and fewer hands own more and more wealth with time. If aliens came tomorrow from a much more advanced civilization, they would certainly ask why in the hell is 50% of all wealth and assets owned by such a small handful of people, who lets face it, aren't exactly the most enlightened people in the world. Excessive greed and power are not signs of enlightenment.
More globalization will mean a continuation of this trend, - wealth increasingly concentrates into fewer and fewer hands. I think this is very problematic and globalists have utterly failed to address this elephant.
If this trend continues unabated, I foresee one day that the human species may actually split, with one group - the "have-nots", so deprived of wealth, education and resources, that they will begin to markedly evolve at a much slower pace. Meanwhile, the "haves", who own most resources, will end up being light years ahead due to better access to wealth, resources and education due to having more money and assets.
Globalists are clamouring for more globalization because their positions of power are only consolidating with it. Media ownership is consolidating. Mega corporations are consolidating into behemoths, that one day could overtake national governments. The stock market has become too big to fail and money market too. This seems all like a very shaky foundation if you scratch the surface. The bubble has become too big, and the turn to nationalism can only be regarded as mean reversion. The system has failed for a few good reasons.