(Not gp but...) I believe it because diversity is not a zero sum game, where every gain for a demographic other than mine means a loss to my demographic which must be fought tooth and nail.

First, we are all enriched by having a variety of experiences and perspectives available to draw upon.

Second, I feel stronger bonds with historically marginalized humans than with humans who happen to belong to my own demographic.

> If you think "all white dudes are/think the same"

Ha, we definitely do not all think alike.