It seems to me that the problem with the Libertarian approach is finding a just way to actually privatize the commons. Since they are by definition common prop

It seems to me that the problem with the Libertarian approach is finding a just way to actually privatize the commons. Since they are by definition common property, the rich have no greater claim on them than the poor. In future generations it wouldn't be just that some people had access to the former commons and some people don't due to the actions of their ancestors. The only solution that I can see would be for those who own the commons to pay the profit that they gain from that ownership to those who do not own the commons. Which I guess is effectively Georgism.