Quote:value of human life as a presupposition
This completely undercuts the authority of the entire system, and makes it equivalent to nihilism + a non authoritative moral postulate. This is unacceptable for anyone who is a critical thinker.
Quote:agreement on morality
I think there is some agreement between us on morality because we are both the result of a theistic civilization that has interpreted biological characteristic such as empathy in light of Judeo-Christian values such as "you shall love your neighbor as yourself".
The difference is that this belief exists as a postulate of morality that is on a much lower evidential level if atheism is true and is really more like a faith-based opinion than a serious belief, while with Christianity the connection between the biology of human behavior and the design of humans is seen.