That certainly seems to be the basis for traditionalist Christianity. A "god" creates the universe and humans, then he sets an arbitrary list of behavior rules that he knows humans will not be able to follow. Then he sends them to eternal conscious torment for that. Excepting for a few who accept the death by torture of the god's son. Those few get to escape eternal conscious torment.
It's hard to imagine how any person who truly believes this heinous traditionalist-Christian nonsense could ever become anything but moralizing, judgmental, and cruel.
Their "god" is a sadistic monster, and they're raised to believe that his values are good. They emulate his sadism and cruelty.
When I was growing up in Baptist churches, people seemed kind of proud that their "god" was so fearsome and powerful. When I asked questions about why he was so cruel, the prideful explanation I always received was that he's mysterious and we must accept his ways. I grew up terrified of the Christian "god." I could never stop agonizing over what I believed were billions of people screaming in hell. Could never understand how that made any sense, so I grew up believing the universe was cruel and horrible. I struggled with this so much, that when I was 10 and 11 years old I was often unable to sleep at night. And I couldn't explain to my parents why I was doing so poorly, because my dad was the pastor.
I'm so glad I escaped the vicious superstition of traditionalist Christianity when I was 16 years old and realized it's all just a crock of superstitious nonsense.
But no wonder the religion has such a long history of cruelty, repression and oppression. It's just rotten to the core! The very basic theology of traditionalist Christianity is horrifyingly evil.