[bumby]

Natural rights do not exist outside of the belief in a social contract. That social contract is also a fundamental part of human survival. They are an extension of human reason and do not exist a priori. History is rife with examples of how natural rights is a belief that can be eroded, unlike true natural laws. Besides that, human have the capacity for reason, but this should not be confused with saying humans are rational. That means we have irrational beliefs that can contribute to survival but do not, in fact, reflect reality. That in turn means "fitness for survival" is not a rational basis for determining facts.