I Exist, Therefore God Exists

According to Kant, the fatal flaw in Descartes' thought experiment is exactly that--its elements are no more than thoughts.  Thus, he argues, Descartes' fundamental error is an inference from predicates of God to the existence of God.  But, while he highlights that invalidity, it is based on a previous error that he also criticizes, but without there considering the Theological significance.  For, implicit in his earlier contention that Cogito is no more than a unifying intellectual function, is a rejection of Descartes'  "ergo" that links Cogito and Sum.  Accordingly, absent 'I exist' as a premise, 'God exists' cannot be derived.  The extent of Kant's influence beyond trained Philosophers is difficult to gauge, but the widespread contemporary emphasis on Faith in popular religion seems to suggest that the long-purported Knowledge of the Existence of God that is undercut by Kant's disproofs is no longer Theologically tenable.