Presuming your pipeline is accurate (dubious, but I'll presume), what "do something about it" is there to be done by the top two steps? It's a disservice to everyone if you hire workers who are unqualified over qualified ones. It a disservice to students to admit them if they are not ready to compete. Being successful either as a person or a corporation is hard, and there's no real way to handicap it and expect the handicapped demographic to succeed.

And if we want to use the past 30 years as an experiment for this, the most academically assisted demographic in America has been black through affirmative action, and they've shown little progress towards matching median US income, whereas Asians have been the most prejudiced against, and they're now far above. Plans like yours, to smooth outcomes based on racial divides, rather than industry or academic standards, are nice things to talk about in politics to make you sound good, but they appear to be destructive to the very people you purport to want to help.