Nah. The world couldn't have been created by an "evil" entity. I know you, and most others, still accept the myth of "evil" existing, but even by your own standards of evil the world simply
doesn't fit the theory that an evil being would create the world.
Choose a brand of evil: and it doesn't really fit.
Wrathful?? No, if that were the case why isn't the world designed in such a way that atheists spontaneously combust??
Prideful?? No, if that were the case one would think that the creator would make himself more obvious.
Greedy?? One would think that a greedy creator would be more obvious and more pushy in asserting his ownership over us.
Gluttonous?? Well... again, I'd think it would be a bit more obvious of a creator existing. It'd be like Galactus, right??
Lustful?? Again, I'd think it'd be more obvious, and we'd all be part of that creator's cosmic harem.
Slothful?? Well, the world wouldn't really exist now would it?? Surely creation is too much work for such an evil.
Psychotic and sadistic?? Well, the world would look like Dante's conception of Hell, but for innocents too, if that were the case.
Even if you still believe that evil exists in the world, it's hard to imagine that whatever being created the world would design it in such a way as to cover the above evils.
I think the
most convincing case you could make for an evil creator (or at least the most
interesting, as it makes for an interesting story at the very least) would be that the creator's evil was
"envy", as a couple "creator is evil" religions actually did believe.
Basically the narrative of that "creator is evil" story went something like this:
God is perfect good, creates Heaven and everything is awesome!!
Creator is jealous of God, wants to create something of his own, creates Earth and convinces people in Heaven to go to Earth, promising it is better than God's Heaven.
Creator essentially traps people in his world by making it appealing. He gets them attached to the material world in such a state that they do not want to leave it, and so they become stuck in a cycle of reincarnation. The only way for people to return to heaven is to detach themselves from the pleasures of the material world, which the Creator uses to trap us all in his inferior copy of Heaven.
That particular "creator is evil" narrative is definitely the most interesting theory on the subject I've ever seen exist, and is the one that makes the most sense for our real world (as if the Creator was evil in a
different way, well then the world as we know it would be vastly different).
Though I still think it suffers from a critical flaw: in that the world the Creator is trying to trick us into staying in just isn't appealing
enough to people in general. One would think the material and physical pleasures of the world would be almost limitless to trick us into staying if this was the case. And one would think an envious creator would be a bit more blatant about their own existence. Something like a salesman trying to get you to enjoy all the good things in his world while encouraging you to look past the flaws.
Basically if the envious creator was successful, your own reasoning for why the creator seemed evil would never have even come about.