Fair enough, so what's your answer to your question "So if rights are bestowed upon someone by another person, who bestowed those rights to the grantee? And who bestowed them to that person, and so on?" i.e., what's your core assertion about this subject?
I'm a Christian, so my belief is that God created us with a set of rights: the right to survive (food, clothing and shelter), the right to exist peacefully in creation and the right to live securely.