What is God doing for you when you choose against Him permanently? Nothing, right? He just steps out of the way. In our belief, God actively steps in and prevents that from ever happening for His elect. That's DOING something, and it's not only for Himself, it is out of His love for His elect.
How does God treat His beloved children under your view? He lets them walk straight off a cliff because He loves them so much, right? I would never do that to my children, and I don't think God would ever do that to His elect. I would infinitely prefer to be a little lead soldier in heaven, than left to my own devices (even with help) and wind up in hell.
Before I can answer that, you will have to answer me how can I do anything God did not "ordain" me to do. If He "ordained" me to choose against Him, where is my fault?