I'm just one person. I've researched this problem space for many years. I had a class on Homelessness and Public Policy well before I ended up homeless.
I think I have some good ideas, but I can't get traction because people with money and power don't actually take me seriously, either online or in meat space.
I wrote this recently and submitted it to HN.
https://streetlifesolutions.blogspot.com/2019/08/a-small-tow...
I think it got one upvote. So I'm pretty fed up and feeling like it won't get fixed precisely because people actively want it to not be fixed, not because it can't be fixed.
I'm a subject matter expert. It doesn't matter. People just want to keep justifying the status quo and calling homeless people junkies and crazies.
Having been homeless, obviously, I'm crazy. No need to listen to fuck all I say, clearly.