This is a good e-mail defending the line:

I would take issue with your reading of Bush’s line that: “liberty is the right and hope of all humanity.”
I do not think this necessarily is read as claiming that everyone has this hope, but that is the “hope of all humanity” in the sense that only liberty will bring release from the current miseries of oppressed lands and lead to the best possible world.
It is the “right and hope of all humanity” in that all humanity has the right (it is inalienable, after all) and that realization of that right is the best hope for the future of humanity. The fact that some may not realize that it is their best hope is part of the problem.