Philosophical Investigations into the Essence of Human Freedom

I confess I am interested in Schelling as Kierkegaard's educator. I understand “The Concept of Anxiety” much better after reading Schelling's fabulous account of originary evil. It's clear to me now why Bakunin and Engels attended Schelling's classes – he was dangerously close to nihilism. One can say about him what another author wrote about Schopenhauer in a different context: his own philosophy and Nihilism are divided by a thin wall. I wonder: how would Schelling write in a non-theological context, so to say, after the death of God? I think he would be even more radical than the fiercest Nietzscheans. Although a metaphysics of the will is clearly documented (“Wollen ist Ursein”), I believe that Heidegger is being dishonest and falls prey to a common prejudice in suggesting that Schopenhauer's main principle is unoriginal.