Morality versus afterlife

[GrandizerII]

Uh, no, it doesn't have to be that way. If someone adopts a moral standard that strongly clashes with my own, I don't need to all of a sudden agree that his standard is good or even better than mine. Otherwise, I'd adopt his standard instead.

I didn't say that you needed to agree that his standard is good for you but rather his standard is good for him.  To remain consistent the moral autonomist cannot judge another man's morality as universally wrong, only wrong for himself but right for the other.  This is how moral autonomy functions.  When faced with the question:  "Is Christianity moral?" the moral autonomist must answer:  "yes and no."  It depends solely upon who you ask.  The answer is yes for those who decide yes, and no for those who decide no.

And? This is practically a problem how? I am still justified in saying that I disagree.