I only responded to the claim that God has "cut Himself off" from unrighteousness.
That is not true. If you have some scripture to the contrary, you are welcome to share it.
That citing does NOT mean God has cut himself off from unrighteousness. God does, in the present, very much deal, adversely so, with sinners. Unless you want to make the claim that Divine Judgment, currently or forthcoming, is phony. That claim won't and can't stand.
Galatians 6:7
Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap.
Ridiculous claim. That says nothing of the sort in that scripture. There are more interesting things to see in that, but your claim is not one of them.
God abandoning Jesus? Please. If any person doesn't think God Himself was involved, every single step of the way with every single event of Jesus, they are not seeing very well a'tall. The Sacrifice of Christ was done, every matter of it, with Gods Divine Hands upon the entirety. As it is also with His creation.
As it pertains to the subject in this thread, yes, God created Satan and devils to do what they do. God also created "Holy" angels to do what they do.
God is quite entirely active at all moments in all points in time, one way or another, in all His creation.
God knows the heart and is longsuffering that all should never perish, but come to repentance, 2Peter3:9. His timing will come when those who refuse His call will face His wrath upon them during the seven trumpets and vial judgments and God will destroy them. God also will not hear the wicked for they are an abomination to Him, Proverbs 6:6-19. but will only recognize the heart of a sinner when they call out to Him in pure repentance, John 9:31. God did not forsake Jesus in Matthew 27:46 as the purpose of Jesus from the very beginning was He would be made the final pure blood sacrifice for sin. God did not forsake, but fulfilled the prophecies of Messiah. Jesus was both God and man as being the word made flesh to come and dwell among us and it was the physical agony of the flesh that separated the diety from the humanity as the flesh part (man) of Jesus died on the cross.