DEI is not "reverse racism" as so many want to put it, it is more about considering diversity and recognizing personal and institutional bias, and working to ensure that bias does not negatively affect people, whether that be in hiring, consideration for roles or promotions, and so on.
All the things we've seen both in government and in companies suddenly dumping DEI programs is craven, and if you actually look you can see it's already doing damage. There seem to be a lot of assumptions that women or people of color in high positions are "DEI hires" when they likely had to work harder than white men to get where they are. I mean firing a 4-star admiral because she's a woman and then claiming she was a DEI hire is insane, but that's where we are. Automatically assuming a black or trans pilot is a DEI hire is insane, but that's where we are.