I define human nature as sociobiology defines human nature, along with how the Evolutionary Christian Church defines human nature. We are alive to survive and reproduce successfully, and our cultures reflect this purpose. And we are alive due to the activation of life by the Spirit-Within, or the Will To Godhood, which works in conjunction with evolution. This whole production and operation of life is evolving toward Godhood in nature, which is the activating goal of the Spirit.
This is how I synthesize religion and science (eg. sociobiology). Religious and political rights don't destroy economic rights, they harmonize economic rights with political and religious rights. And the independent individual is not the sole concern of human rights because natural selection primarily takes place at the group level and secondarily at the individual level. These are the rights of man and God and the conditions required for man to survive, prosper and reach man's ultimate goal of Godhood. Unlike Marxism or libertarian Capitalism, I do not define only economic rights.
Rather than create a totalitarian system to demand these rights through force, I affirm freedom, a representative form of government, with small states having the most power and the federal government charged primarily with protecting the freedom of the states. Within this structure (the original U. S. Constitution is an excellent example) evolution can take place, guided by the Church.