I very much hope you are right about the demise of DEI. But into the resulting gap, what substitute with a three-letter acronym might be inserted? I'll offer the following and invite others to critique and make better:

Individualism:

We want each individual to be judged not by their demographic characteristics but by their demonstrated behaviors, by their generation of value that is appreciated by others, by their adherence to the rule of law, and by a range of human traits that we agree are admirable and wise such as kindness, generosity, contribution, working hard, self-restraint, patience, modesty, and more. (Suggestions welcome.) We want to be judged by our actions as individuals.

Tolerance:

We want all to be tolerant of different characteristics, lifestyles, and opinions, but insist that no one be pressured to celebrate those things on behalf of others. We want to live and let live.

Equality:

We want to provide equal opportunity under the law, not overt or covert systems that handicap or advantage some because of pre-made presumptions about privilege or disadvantage. We all start from different places, at different times, with different talents, capabilities, resources, and experiences. We cannot change these starting points nor guarantee the ending point. But we can assure that the rules will be the same for all such that each may travel as far as they are able. We want equal treatment for all.

I know- these are old ideas that we believed had been adopted. But to catch-on today, you've got to have an acronym!