You find it weird that different religions have different views on the morality or lack thereof? Christianity has a significant amount of stuff layered on top

You find it weird that different religions have different views on the morality or lack thereof? Christianity has a significant amount of stuff layered on top that differentiates it from pre-New Testament. Also plenty of Jewish people identify as atheists, so I'm not sure why their Jewishness would be meaningful to Christians when evaluating the morality of it.