“The idea of public access has popular and populist appeal. But the reality is that the actual use of any resource—whether pursuant to public access, in the name of state ownership, or pursuant to a private property right—is use by individuals. Those individuals, in whatever capacity they are acting, will have varying incentives with respect to use, management, and conservation of the resource. Experience demonstrates time and again that public access regimes pose significant risks for the long-term management and preservation of the resource.”