I feel like the problem in the US isn't necessarily that the government won't directly pay for these kinds of things like they do in Switzerland, but that it's very very hard to finance a co-op, possibly illegal (that is, you wouldn't have the same legal protections a condo does).
I would be curious to see the finances of the buildings they mention in the article. Assuming that you could arrange the two major financial aspects: 1) financing at a level of a normal home loan 2) cut out the real estate developer profit margin, I wonder if a co-op model would become viable in the US.
Edit to add: Intuitively it seems like the math could work out, if you figure that a co-op takes the appreciation of the real estate out of the picture for the people living there, and that being able to rebalance that lost value towards the initial cost or towards future costs would be a trade-off normal people would be willing to make.
In that sense a co-op is more like an alternative to renting rather than an alternative to home ownership.