This Gnosticism is in Neo-Platonism which is implicit in the Eastern Church Fathers and Eastern Orthodoxy which appears to reject part of the Catholic doctrine of the Incarnation by rejecting that the Holy Spirit proceeds from the Son and this in part led to the Eastern Orthodox accepting of intrinsic evils such as contraception, divorce and other errors.
It seemed useful because of the length of the article to post with James' permission a email exchange we had that gives a overview a his important, but long piece: Great article Jim. I agree with most of it. Good tracing back beyond even Ockham of Kant and Hegel to heretical Neo-Platonism. I agree that Ratzinger was a Hegelian and Teihardian, but he was moving away from Kantianism from which comes Hegel both of which come from Ockham and as you traced all the way back to heretical Neo-Platonism. I think Ratzinger was a confused thinker attempting to get out of the Kant trap who never was able to get out of the H and T trap. Ratzinger it appears too me was attempting to be a orthodox Catholic despite deeply flawed philosophy whereas Francis is not making a attempt to be orthodox. In link below read where Ratzinger says one can't put praxis ahead of doctrine as does Francis and the Marxist Hegelians. Please read the link below. Fred https://www.ewtn.com/library/curia/rat