As I’ve often said, Marxism/Socialism/[whatever the Left calls it now] has always ignored the consequences of their stupid “philosophy in favor of its intentions.
Here’s a very interesting take on the whole CRT business, from someone who’s had to live with its consequences for over a decade:
The overarching truth is that an idea pushed South Africa to the brink. You guys know this idea, because it animates the sermons of critical race theorists trying to force you to take the knee and atone for your supposed sins. I am going to call it the Beautiful Idea, because it is beautiful in a way — but also dangerous.
The Beautiful Idea holds that all humans are born with identical gifts and should turn out to be clones of one another in a just society. Conversely, any situation in which disparity survives is in itself proof of injustice. This is the line promoted by CRT pundit Ibram X. Kendi, who blames all racial disparities on racist policies.
Read it all.
And here’s the ultimate outcome of such a philosophy: 
And there ya go. Now apply that to schools, universities, government departments, corporations and just about every other institution, and consider the inevitable outcomes. To the Leftists, though, the outcomes are irrelevant, as long as the policies are noble and virtuous.
How does a military officer do a MBA?
The hard way: Enroll in a nearby college, pay tuition, rearrange your work schedule to fit your class schedule for several years.
The easy way: Persuade your boss to send you to college, tuition and books paid by the government, get time off for classes, commuting, and maybe even study time.
The even easier way: Get college credit for required leadership and other military training. Not that this is necessarily bogus: In my experience, a good field-grade officer will be a much better leader and business manager than a recent civilian MBA graduate with less than a decade of full-time work experience.
You forgot to list that both are the living embodiment of the Peter Principle.
and yet the US secdef decides that climate change and right wing extremism are the greatest threats to the country, rather than foreign (read Chinese) military expansion, and dictates the US military be purged of all who don’t want to go along with diversity quotas and criteria and critical race theory.
While the RSA mindef simply seems to let the country’s armed forces get on with their job of defending the country…
Now who’s doing the better job?