If atheism is true, morality doesn't exist. Most Atheists still feel some sense of mortality because we do have a knowledge of objective right and wrong. Although one can be misled into thinking some right things are wrong and some wrong things are right, without an infallible moral framework to turn to.

The punishment for sin is death. All have sinned and fallen short of the glory of God. It's mercy that God's let you live this long. How shall we escape?

Any religious moral system that says God allows and wants you to murder kind, sane and humane folks can be safely disregarded. What the fuck, lol. Nobody who fears God's judgment (which is a basic prerequisite to call yourself a monotheist!) can argue for that or act that way; how would you explain that shit to Him? But, you know, people... I mean, the Crusades were framed through "Deus Vult" (and the Zionist neo-Crusades are more or less excused the same way, right?), some things don't change and all of those bloodthirsty murderers are burning in Hell, I'm pretty sure. 😔

My POV: morality is (largely?) innate, and if I lined up 100 people and we really went full Socratic method we'd see it, with only a few ridiculously disturbed and confused people arguing against whatever we acknowledged. It's just complex, because some things are very case-to-case and people just want moral rulings under 10 words because complexity is scary and they lack discernment (the Germanic "a rule is a rule is a rule and I follow it because I'm a good boy" attitude comes to mind, for instance, which can easily end up in "I was just following orders, I was being a good boy!"), but the vast majority of people are reasonable enough we'd come to an understanding given enough time... in the vacuum of propaganda and brainwashing, ofc.

That's why there's only one true religion.