[unconed]

This implies that those benefiting from the current system would not benefit in another system, while the ones not profiting from the current system would automatically start reaping benefits.

The study you linked seems to consider any disparity between demographic groups to be the result of "inequity" without qualifying why they expect the same outcome for all groups.

What's incredible to me is that, despite enormous and long lasting data sets those show stable differences between population groups, this is never considered as a causative hypothesis because the idea that people, their cultures and their beliefs are not equal and equally beneficial on average offends their sensibilities.

There is no obligation to ensure different demographics have equal outcomes, nor is there a way to achieve that that has actually worked.