How is the community driving them away? I feel like I touched on this in my original response, but I still don't see how the underrepresentation equates to being driven away. "Driving away" implies some level of hostility, which you claim only to mean "societal disadvantages." It seems in attempt to sensationalize, you end up confusing the issue because by talking about two disparate things as if they were the same.
I'm actually very surprised how accepting this community is. Not only am I black, but I came from a military background with no tech working experience, just hobby experience. Additionally, I spent two years between Iraq and Afghanistan on small teams, something this audience isn't exactly keen on. If there was anyone who would face "hostility" or be "driven away" it'd be me. I'm amazed at how welcoming the community has been. I remember after going to my first conference I told my wife (also a Marine) that I finally felt like I belonged somewhere. By the way, my wife came to the same conference with me and loved it as well. She's still a Marine, flies F/A-18's, and talked with the guys at dinner about the future of aviation, drones, etc. She thought the community was awesome despite barely being able to use her smartphone.
Sure the community may be overly critical at times, but sometimes that's the price you pay for being around bright people who value intellect. I see it as something that makes me better. Additionally, it'd be hard to find a community with bigger hearts and a greater ability (resources and skills) to make things and make things happen.
No matter who you are, if you do good work you'll fit in with this community in my experience.
P.S. By the way, I do appreciate your thoughts and I think your heart is in the right place. I just think there are more effective ways to discuss the issue. Labeling under representation as hostility seems more likely to drive a wedge between sides than improve the situation.
How did any of us get into tech? It's more about exposure and accessibility than anything, not handouts. Let's focus on that.