What if the Christian God existed, but was a horrible, evil deity that intentionally created humanity flawed?

Some contextual background before I actually ask the question: I've always found it very interesting to think about the inverse of some common questions/stories, and one of those is the idea of a Christian God living in the real world, not in a world created by Him. I'd like to ask you guys what you think the consequences of such an event would be, and would really like to know of similar instances in other people's works.<br><br>For context of what I think would happen, here's what I believe:<br>The first time this deity makes itself known to humans, even if it's just to a single person, the first thing this person thinks about is to ask the God to get rid of its own original sin, the capacity to sin. The Evil God doesn't have free will, not exactly, it's bound by its own nature to not sin and to try to make humanity sin, it knows all of this, and seeing real, genuine free-will, even if only in something as simple as that, would fill the God's heart with jealousy and sadness, and it would instantly kill the person who asked that of Him in fit of rage. <br><br>This event would be seen by many as proof that God is truly evil, while others see it as humanity's inability to understand God's will, and to them, the death of that person was a just punishment for their insolence in the face of the Lord.<br><br>In response to the death caused by its own hands, the Evil God sends an updated version of the 10 commandments, this time not with the intention of guiding humans, but to trick them into damning themselves. The first 9 commandments are focused on not creating advanced technologies, and the 10th one states that it's impossible for humans to follow the previous commandments, and thus, surrender to the God and be eternally happy in heaven, or suffer in hell.<br><br>Most of the people following the previous version of the commandments now feel like they're being punished for following the word of God, seeing this new version as a test of their faith, a refusal to believe that their entire lives have been a lie. Many try to stay true to their previous beliefs, while others embrace the new, pseudo objectivist commandments. This division leads to a great war between those who keep the old commandments and those who follow the new ones.<br><br>Eventually, the pseudo-objectivists win, mainly because they're being helped by the Evil God. The old-commandment believers are hunted down and killed, and the pseudo-objectivist commandments receive the status of the ultimate truth that humanity should follow. Truthfully, the only reason why the Evil God wants to stop humanity from advancing is that it knows that, if humanity ever becomes capable of leaving Earth, it will immediately head towards heaven, kill the Evil God, and take its place as the rulers of heaven.