I am just pondering those issues myself working on the refugee, IDPs and the issue of the unwanted humanity. I would like to point at the issue of the dialectics of the human rights. Sure they are used by states as the tools to meet their ends, yet at the same time they do have positive impact if one looks at the "inside out" communities, groups approaches. I was reading some ethnographies from refugee camps by Michel Agier and there is clearly possible for the disempowered groups to adopt human rights based approach to fight for their rights. The Universal rights are only a framework. Local communities would adopt their own understanding of those rights and will pursue them to form coalitions with other groups. As we hate universalism, it is in a way allowing us to communicate... I highly recommend A. Tsing "Friction" to comprehend this issue plus Mark Goodale, Upendra Baxi for the start. Look at the ideas of cosmopolitanism and an interesting positions by Isabella Stengers. Enjoy reading and hope you will get closer to your answer.