It was something corporations were pushing hard to distract workers from fighting for higher wages, better trade deals, chase after some dream job they got from a college degree. Cosby, Spike Lee, and others in the black community pushed this out on behalf of companies and were well compensated.
This ad from Amazon is a perfect example, do you think you will strike if you are getting a college degree? Because we were kept out of many white collar jobs, blacks were the driving force behind many union drives. When they made white collar jobs available, we stop fighting for higher wages.
Unionization rates plummeted and wages declined because people pursued some fantasy job that you held for two years than got fired for a bullshit reason.
Hey Theo Huxtable, why don't you unionize your employer and get paid a higher wage? Theo, you can become politically active, and revise trade deals that favor corporations at the expense of workers.