I was referring, more specifically, to the early 1900’s when it became the fashion to go over to Germany to study philosophy. It is Kant who is more important than Marx. And he was not an atheist. But he was a follower of Plato.
I was considering the influence of the German rationalists on philosophy in the US during the 30’s and beyond. They gained a toehold which in about 20 yrs had invaded and taken over the tent. Atheism and its concomitant Scientism was a vital component of that transformation.
Among theologians the popularity of French and Germans overwhelmed the influence of CS Lewis, Tolkein and other Christian scholars.
Intellectually we have been in the sewer for about 50 years.