Comment: In order to unify while embracing our wide diversity in beliefs,

perhaps we could say that 'Life' is the source of such unalienable rights. The fact that one is living would be the only requirement to lay claim to these rights. This seems to be more true in my own perception of reality. Maybe the theist, the atheist, the agnostic, and others could all agree on the point of Life as being our common ground.

No individual or group can grant you any right unless you are a slave to them. Being a slave requires one to offer his or her own consent, or submission, to the master's perceived authority. Freedom is a (difficult) choice. Most humans seem to settle for various degrees of (evolved) slavery.