If man had a choice to choose it, then it was already created.
There is only One Creator.
The other option is Zoroastrian dualism, where God creates all good, and the devil creates all bad, and people have to choose between the two. Humans did not create the concept of evil, but they did and do perform it. Satan did not create anything.
So you are saying that God did create evil? Yes?
You have to realize that God allowing for the capacity or the potential for evil is not the same thing as directly creating evil. There is a difference. God did not create Adam, Eve, and the devil in a rebellious or sinful state. Nor did God force them to be evil, either (As if that was their only choice).
The Scriptures say, "He that commits sin is of the devil because the devil sinned from the beginning" (1 John 3:8).
Meaning, exactly that. You are of the devil and not of God when you commit sin. So it is true that God creates all things that are good and the devil only does that which is evil and sinful and seeks to destroy. Granted, the devil does not actually have creative powers like God in any way. But the Scriptures do say you are in association with the devil and or his kingdom when you do sin and or evil.
It is also true that people have a choice to choose between God and the devil in this life. When you choose yourself and or sin, you are choosing the devil. But if you repent of your sins and accept Jesus Christ as your Savior, then you would be of God's Kingdom. This is a choice. It is your free will choice.
God did not directly create evil. God created free willed beings who had the potential to do either good or evil. God did not create beings who would only do evil as if that was their only choice. No, no. Most certainly not. Neither did God create waves of evil like it was some kind of evil cloud of death that would zap people into being evil. Man chose evil in the garden and we have been living with the consequences ever since.
Evil is anything outside of God's will and goodness. God might have laid the ground rules for what potential evil was going to be, but evil would not come into existence until his creation chose to bring that evil into his world of their own free will choice. For you have to understand that God did not directly create evil. His creation was given the choice to either choose good or evil. This is free will. Unless you believe God forced man and or angels to do evil. Is that what you believe?