I agree 100%. Let's say hypothetically that we both agree there is a creator, and that we both agree with what you just said. What can we deduce then about the Creator?
In Norse Odin (that is to say Whotan, Whotanaz, Oski) bound Loki (Villi in Old Icelandic - which is where we drive "villain" from historically) to the world tree for 1000 years, whom is Cupid in Roman, Lucifer in Greek, Shaitan in Hebrew, Quetzalcoatl in Aztek, etc.
In Biblical yes we all know the story as well. Why would God do these things to humans both directly and indirectly knowing what Satan will do and also do in return to humans?
I think to answer you question in a hypothetical sense, is to say God is not what most people perceive him as, and thus hold silly interpretations of this goody-two-shoes personification.
In all prechristian as well as Christianity, God is seen as a destroyer, a warrior, a killer, a violent God with a harsh temper. He created thorns to inflict pain, created domestic violence in Genesis between Adam and Eve, gave us diseases, limits our lifespans to 120 years, and more. I would say that God is no more evil than Satan, but the fact remains that God created Satan, was more powerful, and retained power and control over Satan, as well as humans recorded in Norse and Greek with the great war. I would deduce that all evil that comes to humans, is from God either directly or from Satan which God allows or even encouraged considering the free reign explained throughout written texts that God gave him (Satan).