You think those curses were mean?
Let's say you're right. God was mean and should not have cursed Adam and Eve. Or the serpent, or the earth. Just exile, and be done with it.
So now here you are, 6000 years later. You are born in paradise, all your needs are met, everyone is living happily in abundance and but for a few wars now and then, life is pain free and easy.
And then you die and go to hell for an eternity because it never occurred to you that anything was wrong. That anything was broken. That anything was, in fact, cursed.
Mean? No, it's not mean to give your fingers heat sensors to keep your hands out of the fire. It's not mean to give you taste buds to know not to eat your own shit.
Nor was God "petulant" or mean when he went about exiling them, or protecting Cain who had just murdered his first prophet, Abel, etc.
Everyone on earth but for Noah's family had contaminated DNA. They were no longer human. You weep for hybrid monsters who would rend your soul in hell if they could.
Sodom and Gomorrah were God's visible declaration of what he would not put up with. And yet, people still act worse than the people in Sodom and Gomorrah. That should lead you to "people are broken", not "God is mean".
The Egyptians had enslaved the Hebrews. Now you're rooting for slave owners? On top of that enslavement, they had murdered all of their male babies. You're rooting for infanticide perpetrators?
Are you not evil?
Moses never slaughtered half the Jews; that would be millions. The rebellion of Korah met their end by the earth opening up and swallowing them.
The people in the holy land had 400 years to repent, and did nothing but become more wicked. More wicked than anything you've ever seen or heard of. Killing them was a mercy.
Again, rebellion against God in the Tower of Babel: God says spread out and occupy the earth, and men say let's all cluster together and invade heaven.
You root for the rebels. The satanic rebels.