Some of us, for reasons of ethics, use it for the opposite purpose, by practicing copyleft. But that's not the way the copyright system is designed. Distributing copyright ownership among more people might redistribute wealth, but it would not give people more freedom to cooperate. Reducing copyright power is what it takes. There is no freedom without economic freedom.
Economic freedom is of secondary importance among freedoms.
It is possible to restrict economic freedom in many specific ways, with industrial regulations, and still have a basically free and good society. It may be true that economic freedom requires SOME kind of property. But it does not require all the kinds of property that anyone has ever created. It certainly does not require copyright. If people share what belongs to them, that shows their moral goodness.