No, but the only plausible accounts of moral realism seem to be the religious ones.

I reread my comment but I'm not sure how you leaped there. I said morality need not be tied to ritual.

Religions and morality are often disjoint, simply due to Euthyphro's dilemma and how that plays out in practice. Divine command theory externalizes responsibility for behavior and thus promotes and excuses immoral action (meaning many religion's resolution to the dilemma puts them into a commitment to behaving immorally).

Religions usually usurp the role of being the source of morality. It's a necessity for them because that's the only way they can cover up their deep and vast immorality.

You can't be evil if people believe you define what evil means.

This way omicient, omnipotent God can still be most moral being in existence while allowing babies to die of cancer.

Nice way to use divine command theory to reconcile theodicy.