I posted about how the iOS development space is very white, male, and straight. A lot of white, male, straight people seemed to think this was me telling them they’re doing something wrong.
I said that I don’t see a lot of people like me in my field. If your immediate reaction to that is defensive in any way, you’re the problem. You need to examine why that makes you react defensively. That’s my advice on how to improve diversity. Interrogate your own bias.