"And he is unable to present his variant of Western morality with sufficient force to convince people who do not start with a morality similar to the one he already has."
That isn't his goal here. He is simply trying to show that these questions do in fact fall within the scientific domain, as a starting point for working toward some morality, whether a variant of his Western morality or not.
That isn't his goal here. He is simply trying to show that these questions do in fact fall within the scientific domain, as a starting point for working toward some morality, whether a variant of his Western morality or not.