Precisely the opposite is true, and here's why,...
Theists claim that they cannot know what is moral or immoral and this is why they need a God to dictate to them which things are moral and which things are immoral.
Therefore they can't even argue that their God is moral since they, by their own proclamation, cannot determine what is moral or immoral.
So they can't even argue for the morality of the things Jesus did much less for what the God of the OT did.
If the God of the Bible tells you to bash babies against rocks, then bashing babies against rocks must be moral. If the God of the Bible tells you to kill people who teach of other Gods along with their children, livestock, and even the entire village from whence they came then committing genocide against people who teach of other Gods must be moral as the theists could have no clue what might be moral or immoral on their own right? They need to have their God tell them what's moral and immoral.
So theists are in no position to even be able to say what's moral or immoral because their very position is that they cannot know if their God doesn't tell them.
So this kind of theistic argument is nothing more than an admission of having no moral compass at all. So they are in no position to even say what might be moral or immoral. By their own confession they have absolutely no way of knowing.
All they can do is try to follow the conflicting directives of their religious dogma and hope that it's moral, because by their own confession they have no clue what's moral or immoral.
No theist is in any position to try to argue that the actions of their God are "
moral", because according to them they cannot know what's moral or immoral.
It's a silly argument that actually backfires on them and places then in a position of having to confess that they have no clue what's moral or immoral.
Atheists, on the other hand, can indeed take a position on morality. They can argue for why they feel something should or shouldn't be considered to be moral or immoral. Atheists can even argue that some behaviors should be considered to be amoral (
beyond the scope of right or wrong). For example, should I eat an orange or an apple? It doesn't matter because those choices and actions are amoral. They simply don't have a right or wrong answer.
Theists can't even join in those debates because they have already decreed that they cannot know what is moral, immoral, or amoral.
So ironically, only atheists can have meaning discussions about morality.
