It's a natural consequence of the statistics that 1. people get more conservative on average as they get older, and the average age of most countries is steadily increasing, and 2. conservatives have more children on average, and political views are partially heritable.
Are you excluding the possibility that after seeing first hand over the past decade that these policies are often detrimental to an organization despite the popular narrative otherwise, people are no longer willing to play pretend for fear of being ostracized.
My fiancé works for non-profits and an educational institution (Canada). In the former, every grant application or program has to involve some DEI component regardless of how little sense it makes. Applying for funding for replacing a failing HVAC system for a skating rink? Applying for new gutters for a shed that houses field maintenance equipment? Please write a brief essay on how these projects benefit and advance equity for minorities!
In the latter, hiring and promotions have become nearly exclusively about race. Internal candidates have been explicitly told that they’re going to be passed over in favour of others because they’re not diverse. Under-qualified individuals are hired based on skin colour.