When you speak of “transcendentalism”, are you talking about “vital immanence” as was described in Pascendi?
Yes, I believe so.....in the sense that Transcendental Idealism suggests we “intuit” to and understanding of God, and thus as in vital immanence, religion arises purely from within man himself, deriving all its credibility and force from man’s own personal experience as its source. Religion essentially arises from an inner sentiment in the heart of man, and this sentiment is not only where the modernists locate faith, it is also where they locate revelation itself. Vital immanence tells us that, in a sense, man creates God.
Thus, in combination with the adoption of Darwinian Evolution wherein man is “evolving”, thus as well, God must be evolving such that those matters which once were sinful in God’s eyes are no longer so. This is of course, all heretical.
I wish I could locate my research notes. It takes days for me to recreate my previous understanding of the problem. But as I recall my research, the problem begins with the ditching of Thomism by philosophical successors to Nietzsche and Kierkegaard and the embrace of Existentialism by people such as John Paul Sartre.