ping
It's like the case of the pagans whom Paul addressed in Acts 17. He said God overlooked their paganism for a time, because they were ignorant, and (v. 27) "God did this so that they would seek him and perhaps reach out for him and find him, though he is not far from any one of us."
So they were in error, and yet they were, some of them, reaching out to find Him.
But when a post-Christian society goes pagan, it is going in the opposite direction. Having encountered the true God, they are rejecting Him. It seems to me that modern paganism is quite a different thing from pre-Christian paganism. The earlier one, though erroneous, was seeking. The modern one is rejecting, much more likely (it seems to me) to proceed from a depraved heart.