Is God Sovereign?

A lot of calvinists believed that adam had free moral will before he fell. So did god lose his sovereignty at that moment? This is the same issue i ran up with mat slick when we were debating. He kept talking about how you're committing idolatry laton, because you're denying the ssaty of god. It's the lie that got, that got humanity cast out of the garden. And you see it even in the satanic temple where they sayng let us eat from the tree.