It’s a system of morality utterly based on magical thinking that begins with the dubious requirement of faith in the existence of an omnipotent creator, a laughable and absurd premise that to me at least, invalidates most of its subsequent conclusions.

I would hazard a guess that that most Christians would say that the sins are commandments from God, who purposely omitted the “sin of haste” for reasons that cannot be comprehended by man and that you should go read your bible. What I would recommend instead is to continue the ethical line of thinking about the harms of haste, look for real world examples, and seek out what other ethical thinkers have to say on the issue instead of trying to fit that exploration within the context of an arbitrary belief system that encourages you not to think at all.

I find Christian “ethics” to make much more sense when understood as an autocratic system of power rather than one that is trying to grapple with what it means to be “good”.

So you're saying that an all powerful God who created everything needed to come up with a convoluted way to game the system of sacrifice that he created, by splitting himself into a human form, sending that form to Earth, and brutally executing him, in order to "save" humanity (from the threat he created btw)? Also, he's all loving, but if you don't literally worship him, you will burn for all eternity.

To you that seems rooted in critical thought?