As Suiss and Belgian, it's normal for us to have that reaction.
But in the anglosphere, the radical leftists have already infiltrated a lot of institutions.
So yeah, "please tell me what you think about diversity" is a tool they use to weed out the people who will not play along and cause trouble (meaning you will actually have your own opinion) inside the institution or company at which you're applying.
In my company for example, it's not there at all at the Belgian level. I had an interview for a new position a couple of weeks ago and this diversity nonsense was never brought up at any part of the screening process, except at the end of the ad which had to stipulate the platitude "we encourage diversity!", but that comes from the international level.
So no, he's not kidding. Personally, if a company requests a "diversity statement" as part of the hiring process, I'll take a pass without hesitation, the company's corrupt and they will eventually have to pay for the mistake of getting tangled up with radical political activists.
Hair transplants: 2000 graft (May 2014) and 2024 graft (January 2018) FUE's with Dr. De Reys for front and mid-scalp - Last hair transplant: ~1000 grafts on crown area (February 2019)