True. Most wealth has been stolen.
However, the Middle Easterners have managed to turn black gold aka oil into a vast amount of wealth.
Black folks can start building wealth as a group by:
1) owning our talents and abilities, intellectual property
2) using a Black bank
3) supporting Black businesses
4) buying sports franchises
5) investing in land and real estate
6) buying stocks and bonds
Putting money to work is the best way to generate wealth in the absence of having natural resources to sell.
As @richardmurray has taught, Black folks are many tribes. The ship of group unity has probably sailed.