HoG: It is impossible to engage in an honest debate with someone who questions the definition of "is," as you do. You are willfully avoiding the facts in order to create a facetious argument. Personhood has no observable, factual basis, and therefore cannot be used to determine the beginning of a human being.
Science proves that a human being is created at the point of conception. According to the foundational belief that "all men are created equal," this is the sole point when all men must receive the rights to life, liberty and the pursuit of happiness. This is the truth, and you have provided no evidence with which to dispute it.