He is correct... but avoids the key issue when discussing Black WallStreet in that vid. Black WallStreet's fall was not an economic one, but a militaristic one.
Until you are willing to kill the men women and children who steal from you and murder you, there is no way to unilaterally accumulate wealth or anything else. You can only own what you can protect.
So while correct in his assertions, he is just failing to vocalize the solution. And it is not an economic one, but a brutal one.