And most of that elimination of extreme poverty? In China. Now, I suppose you can consider Dengism capitalism, if you ignore the fact that it's markets and capital under controlled conditions being used to build up industrial capacity for the transition to communism, but hey. Whatever definitions let you sleep at night.

what is the source of this data?

the fallacy is that global free markets are exclusive to capitalism. we're trading with china, and aren't they supposed to be socialist?

and i'll add to my reading list to challenge my bias!