The reaction was immediate. Perhaps he hasn't read de Tocqueville, John Locke, or Adam Smith.
Philosophy is a work of the fallen human mind, earthbound and limited.
Socrates was a philosopher. Aristotle was a philosopher. These were brilliant men, but their brilliance cannot be confused with divine revelation, especially since we can only know what the philosophers get right by comparing their human teachings to the infallible truth revealed by God in the Holy Scriptures. Our Lord Jesus Christ is more than a man. He is the Eternal Son of God made man.