Diversity, political correctness? more important than unity and common sense?

Military men and women, law enforcement people, all vital to country and society have minority members that apply for promotion, most of them deserving recognition, but what about the ones that you dare not point out as not yet ready or altogether not suited, because it could backfire and has sometimes ended peoples career to speak out or give an unfavorable evaluation report. I'm sure no one gave even a whisper against Hasan's elevation to major. He was not ever employed in harm's way, and yet was to counsel returning combatants