Yeah, I think those are exactly the alternatives: Either the wealth keeps getting transferred[0], or it doesn't.

But if it keeps getting transferred, how can that last forever? Over time, the gaps between countries shrink in that system. So "labor cost exploitation" puts itself out of a job.

[0] globalization is corporations more than "countries" voluntarily transferring wealth, sure, but... I don't think you can argue it hasn't increased wealth in those countries