I didn't frame it as getting rid of diversity and inclusion, that's just usually how the roles are defined. But you're missing my point completely (maybe intentionally?). I'm just saying that we should talk about specific administrators or administrative units, not "administration is too big". So let's talk about that, not whether your framing of my framing of the university's framing is accurate.
And you'll see that this is effective, because now when you ask those more specific questions, there are potentially good discussions.
Like "Why is there a Dean of the College of Athletics that isn't also handling athletics and the parts of title IX that are relevant" and someone might wonder if it makes sense (based on your proposed structure) for the Dean of Athletics to be handling rape cases, and whether they have the expertise to deal with the federal regulations that come with Title IX.
Or "Why can't the Dean of the College also handle grants for their college?" and someone might wonder why it makes sense for someone responsible for undergraduate education (which might not involve research in some universities) to handle grants, which is usually related to graduate education and research (and in many fields, don't involve students at all).
Or "administrators in admissions ought to be handling [diversity and inclusion]" and someone might wonder if there should not be someone also responsible for diversity and inclusion in faculty/staff/administrator hiring, or in campus policies around inclusion (like accessibility services), which are post-admissions.