When DEI is a centrally planned, feel good initiative with nothing more than talking points, it is largely ineffective and that's why companies are starting to get away from it. Opportunity lost.
DEI works when the people who implement it are properly placed and socially versatile enough to actually see where social and cultural differences lie, can identify them, and provide opportunity based on their ability to spotlight these issues in a proactive and non threatening way.
Start with forming focus groups that people can voluntarily join to actually have conversations. Let good intentions and creativity carry the motive of everyone getting a fair chance, not some list of platitudes that make everyone feel either guilty or marginalized right from the get go.