Gosh, if it's that easy, why hasn't it happened already?
The truth is that's very hard. And if we can't measure it, it's impossible to tell which bias-reducing interventions work.
I get why white people, of which I am one, want to just ignore the problem and hope it goes away. But if there's anything that history demonstrates, it's that sustained power differentials don't just go away on their own. In the US, that's what both our Revolutionary War and our Civil War were about, as well as our civil rights movement. And things like the First Nadir and the Second Nadir show that even hard-won victories like those don't last without upkeep.