"Structural racism" is a coded term. We have laws against discrimination and HR departments across the country bending over backwards to avoid lawsuits... but you're not asking about the problems those are intended to solve.
When you ask a question like that, what you're really asking is, "why don't workplaces have the outcomes I expect along racial lines when it comes to hiring, compensation, promotion, and more?" And implicitly, "why can't workplaces be forced (or force themselves) toward meeting the outcomes I expect?"
Those are different questions, but they're encoded in yours. And they don't really apply to the topic at hand.
Avoiding lawsuits is not at all the same as attempting to deal with the issue honestly as opposed to framing it in the same light as some new kind of competitive marketplace.
