Are you saying it's necessary or desirable to lower the bar for people to fill quotas, however, when someone writes something that you obviously haven't read or understood, it's rightful that they should be terminated for those opinions that you don't even seem to have grasped. I mean, you do realize that "trying to use provable false statements to create a toxic work environment for one third of your coworkers is a PR disaster" is utterly false.
This merely shows why they're not legally mandated. "Necessary", or "desirable" is another matter entirely.