Rahadoum and the Divinity of Mankind

[DM Quoth]

Consider the Pathfinder realm of Rahadoum and its policy of atheism - and potential problems due to lack to access to clerical magic.
Now consider the Ravenloft 'religion' known as the Divinity of Mankind. Imagine someone from Paridon managed to escape to Rahadoum and introduced the Divinity of Mankind. What do you think the results would be?

[Coidzor]

The Rahadoumi have built a religion out of the hatred of religion.

So it could really go either way that they'd want to reject it while any divine agents or proxies in the area would also want to murderbucket this person in the face or that they'd go whole hog, probably with some syncretism and you'd have some kind of Man-Emperor of Mankind scenario.

Or both and Rahadoum is engulfed with enough civil war to potentially make for a series of adventures.