Forgive me if I read too much into your post, but the common argument I run across, and which I interpreted your post to imply, goes something like this:
God created everything, including the rules by which the universe functions. Everything in the universe is subject to these rules. Thanks to these rules, we can predict every physical/chemical/energetic reaction that happens from the Big Bang onward. By seeing the complex chain of causality, we can therefore determine what the future will look like, down to each state of each individual quark at any given point in timespace. The consciousness of living beings is simply an amalgam of chemical and electrical signals and reactions. Because of this, we can predict exactly what an organism will do in any given instance based upon the sum total of previous reactions the organism has had to its surrounding environment or even to its own inner world of consciousness. Since this is all completely predictable, organisms therefore do not have any actual free will, as their actions are predictable and boil down to purely physical phenomena which we can analyze and for which we can trace the chain of causality. Therefore, if God created the universe, every single one of our actions, thoughts, sins, virtues, personal characteristics, etc. was determined in advance by the fundamental rules underpinning the universe. Therefore, based on the sheer fact of how God designed the universe, it was an inevitability that we would sin and run afoul of God, and so God had already forced Adam and Eve to make their decision to sin from the very moment that He created the universe.
