The problem the US has in this regard is the blunt, stupid way we do it. "Race" is an example.
I work at a consulting company with very competitive hiring. Many of my teammates are "African American" according to the standard US classification, but guess what? Most of them, although born and raised in the US, are the children of Nigerian immigrants.
A candid discussion with one of my co-workers on a recent business trip revealed his issue with this. He is a descendent of slaves, and has roots in Alabama and Georgia. The policies of correcting for slavery, Jim Crow, and its resulting consequences are benefiting people who, due to immigrating in the last 30 years, weren't affected by it. My company is getting credit, the universities who admit these students are getting credit, and none are actually addressing the true group of people who were historically forbidden the right to read, to work, to own land, or to get an education of any kind. He isn't at all angry at our wonderful Nigerian-American coworkers.... he just feels that these hamfisted measures could easily be adjusted to help the groups they were designed to.
Having a broad spectrum of people with different levels of melanin may be one indicator of diversity, but it can be a poor one. I have never, ever worked on a software team with another person who grew up in a trailer park or even has Appalachian roots. But its cool. Another white guy who grew up in Sunnyvale is going to be exactly the same as me, because we both have northern European ancestry. Problem solved.