Some words are loaded like weapons, polarized by identity politics, and Diversity is extra special because it's also an idea that means a lot of different things to a lot of different people. Because it's so big, entire regions of the idea are forgotten about in oversimplifications: diversity is about more black people, or about gay people at work, or eating curry on Tuesdays. But diversity is bigger than this, it is not limited to cuisine or race. It is the whole house with all of the people. All of the different people, all of the different ideas. One roof.
History is inescapable (it's right behind you), and repeats a story about how any country or government that is purposed to preserve the status quo against decay, is also committed to never improving or growing and this stagnancy always ends poorly. Always. When a homogenous group of people, guarding against change are confronted with crisis, they have homogenous solutions. When met with failure, this leads to few alternatives. But as a range of ingredients allow a chef to make a range of cuisines, a diversity of people will contribute a diversity of ideas when confronted with a problem. In a competitive economic system, those with the best of resources win, and people are still the best resource.
As cities gentrify once more (this isn't the first time the upper classes have lived an urban life), urban economic resilience will be greater when there is a wide range of different people living within that community. Not just different races and religions, but widely different people. Strange people. Weird people, who might dye their hair different colors, or wear odd clothes. This also means including people who don't like weird people. Weirdos have make room, if you do not offer respect to others, then you leave them unable to return the sentiment. Also worth remembering, respecting a person is entirely different from agreeing with them. Diversity means having a robust community of conservatives alongside a robust community of liberals, blacks with whites, religious and nonreligious people.
Skot Welch is one of the advocates, one of the true believers of inclusion. Without inclusion there is no diversity, just the remixing of the same parts over and over again. I've had Skot in my studio a few times, and here are a few pictures of what an inclusion evangelist looks like.