Could we in the modern world create new kinds of communities, gathering individuals who “opt-in” and adhere to a set of agreements ? These would define the rights of the community and of the individual. The community could define criteria for accepting folks in, but there would be a non-negotiable right for members to “opt-out” freely if they so choose.
This would gradually erode the legacy we have of geographically and ethnically defined communities, and move another step closer to true individual freedom of choice. It would also create stepping stones towards full “Human Rights”, for countries like China, by focusing on ensuring a small subset of “non-negotiables” eg no torture, freedom to leave a community, but leaving the other aspects of community policies to be defined by each particular culture or community.