They are
Capitalism but the fact that "the World" has to be bunched together still speaks to the vast gulf in talent between the US and any individual nation.
True they are winning because they are bunching dudes from all over. But they have reclassified what is foreign and what isn't. A player born overseas but has played in the US for years would now be considered a world player. So a young Pat Ewing would be a world player and a young Deng would be a world player. Kobe would be a world player.
Nike also did this to make the game more competitive and to spread the game globally.
You could see that with the adult US team when they let dudes like Hortford play for DR. Years ago he would have been on team USA. But they and the league want to promote and spread the game.
