I think that basic services and public goods (health, education, energy, communication and basic food) should be state-owned to garantize the access for everyone, but not necessarily others. But it is true that companies in general should be cooperative, owned by employees.

What good does nationalization do when there’s no workers self-organization? The USSR (even before stakhanovism) is a good example of how top-down organization is a complete failure for workers, for users, and for society at large.

We need self-organization at all levels, right now.