"Diversity and inclusion" as a separate function is mostly an exercise in giving the rest of the company cover. In my experience the people in these orgs have very little power to do anything, they just recieve the complaints, empathize, and then nothing happens.
As an example, I went to our head of D&I with a complaint about HR violating human rights law in our jurisdiction. They said "oh that sucks" and I never spoke to them again. I could have gone to a tribunal and argued about it, but instead I ignored HR, and shortly after left the company because I kept having to fight them about what seemed like baseline "inclusion" stuff. The D&I staff were mostly busy making promotional materials about the few successful marginalized people at the organization, despite our terrible stats.
As an example, I went to our head of D&I with a complaint about HR violating human rights law in our jurisdiction. They said "oh that sucks" and I never spoke to them again. I could have gone to a tribunal and argued about it, but instead I ignored HR, and shortly after left the company because I kept having to fight them about what seemed like baseline "inclusion" stuff. The D&I staff were mostly busy making promotional materials about the few successful marginalized people at the organization, despite our terrible stats.