I'm not really seeing how the blacks and women ruined corporate research, can you expand on that more? Are you saying they were all retarded and without enough white, Asian, and Indian men nothing could be accomplished?
Since they don't make up 50% of the pipeline the enforced restriction necessitates hiring further down the ability rank even if you are to assume that all races and all sexes have the same ability / aptitude. And it also means for every non-minority male you need a minority female and those are very hard to get.
If for instance higher ups from all companies require you to hire only whites with straight blond hair, a certain weight/size and with green eyes, you will quickly need to hire the bottom of the barrel of this group to expand your teams.
Numbers were not invented, they were tied to management bonuses, numbers lower than that negatively impacted bonuses. Inhouse counsel were much more worried about disparate impact lawsuits than race quota lawsuits. There are many reasons why I, and others like me, can't post personal anecdotes publicly.
Not absolutely everything was great before DEI, and DEI is not the only problem. I gave a number of other problems that have diminished the efficacy of research orgs.
Corporate labs have now gotten so bad that I can outcompete them as an individual which would have been much more difficult in the past.
