I've lived in the projects my whole life, still live in the jects, so I've got a stake in this situation.
In Canada, they followed suit with Public Housing much like the U.S. , building massive public housing complexes, except they are usually in pockets around the city, not normally clustered like the U.S.
I lived in Canada's largest and notorious housing project, Regent Park, for the greater portion of my life, and currently live in another housing project not too far away.
Both communities are subject to revitalization, which Regent Park already being half torn down and replaced with mixed housing, public and private. The results so far have been mixed, with the Gang Members still having their way with each other, but the quality of life has increased noticeably for those who are in the revitalized part at least. Businesses have moved in, and the middle income people spend money in these businesses which are mandated to hire people in the community, which further brings in income.
The actual houses themselves are smaller, but clearly a step up from the houses they used to have (which were honestly
), and the area doesn't look as dilapidated and dangerous as it once did. Displacement is a fear however. I will have moved out on my own by the time they begin to revitalize my current neighborhood, but some people may be displaced, and that represents a human rights issue that the planners of these projects should be aware of.
Overall, I think that the revitalization model is a success, even though it isn't an overnight sucess. The violence in the community and the drug dealing wont go away overnight, or ever, but mixing the communities with middle and higher income people will give more of a voice to the problems of the community, and help to reverse them. People in the projects from experience only meet other people from high school, and when they drop out of high school, they don't meet anyone else period. It's literally a whole other world.
So, in short, I'm for demolishing the projects if they are doing it in the spirit of revitalizing it using 21st century knowledge in sociology, economics and architecture, but demolishing them simply for the purpose of capitalism is totally abhorrent, which I fear would happen in the U.S.