There are obviously downsides to top-down centrally controlled economies but to say they don't work is ridiculous.
I don't want to live in a top-down economy. It's too oppressive. I would prefer bottom-up socialism based on worker cooperatives.
But there are some services that are so critical that they cannot be left to the market with it's wealth-centralisation and pay-to-play politics leaving the vast majority in destitution.
Housing is one of these critical services.