[3. Scripture clearly teaches that sin originated with Satan in the heavenly realm and with Adam on the earthly realm. No where does Scripture even hint that God is responsible for any creature's sin. But yes, Scripture everywhere teaches that God ordains the sinful acts of men which they freely think, feel and do.]

What is the difference between foreordaining and "originating"? Between originating and "being the author of"? To me they are the same.

It seems to me like you take one idea - omnipotence - and try to view every other aspect of God through this lens.

I really don't think God has to have absolute control over every aspect of the universe to know what it will do.

He is also omniscient.