Just some anecdotal evidence:
Recently I visited a major government office in San Diego. There was a large open room full of workers and cubicles. Of the dozens of employees I saw working there, I noted that there was not one single white man there. There were a number of minority men. The vast majority of people there were women. I would guess there were equal numbers of white females and minority females.
Understanding that government has been a leader in affirmative action, this story may not surprise too many people. And this is just anecdotal. But it seems to me that women and minorities are finding many jobs in government, anyway. If there’s any discrimination, it would appear that affirmative action formulas and recruiting have the effect of giving preference to certain people, and screening others out.
Look at the make-up of most government offices around large cities. Look at the post office around large cities. A lot of it is make-work welfare under the guise of government employment.