If one believes in objective morality as defined by Yahweh, they have no business teaching an ethics class. Yahweh orders and celebrates genocide, slavery, child abuse, misogyny, marrying of one’s rapist, and all manner of behaviors that modern society considers deeply unethical.
The most interesting thing I’ve realized is that Jesus himself is portrayed as a pretty liberal, empathetic, merciful man of the people. What passes for modern Christianity would sicken him. Organized religion is effectively organized crime hiding behind some platitudes, but if you just listen to Jesus himself (and not the people/organizations claiming to speak on his behalf), you could do worse.
Of course, along with that goes some delusional nonsense, but I’d rather deal with someone like that than a hardcore conservative who can cite verifiable sources for every thought they’ve ever had.
This raises the question of if Jesus actually existed, which I’ll happily avoid getting into.