Seems like a non sequitur?

If you want people to be able to live in a place without paying rent, please just outright gift that to them and make that official policy. That may or may not be good policy, but at least it's honest.

But if the deal that people agreed to is to pay rent, then the courts should also enforce that.

You can get from one regime to the other, by eg buying out the landlords or outright expropriating them. But if you want to do that, please just advocate so outright.

Social housing may or may not be a good idea. But it's a completely separate issue from non-enforcement of existing rental contracts.