The squat pseudo-asian hobgoblins called finns who inhabit the damp forests filled with puddles have never been properly civilized. There were attempts to do so by Swedes and Russians, both failed to uplift them from their squalid and barbarous existence. Not even their collective dyslexia was ever cured.
Their hatred of God stems from both this history and the terrible conditions they endure which are a result of their cursed nature. 'There can be no God, at least a benevolent God, and the reason is this!', the finno-mongolian points to himself, his flabby and unattractive shape, his bad teeth and his massive gut, his awful haircut. He points to the ramshackle huts built as a bad facsimile of modern housing which his community lives in. He points to his ogre of a wife. And maybe you'd almost think that he has a point, but I would argue that this is their punishment for rejecting the Lord. The Scandinavian tribes that converted to Christianity were launched into a golden age while the finns continued to bugger one another in their saunas. They did formally convert at one point and their national flag reflects this, but it sadly never went beyond mere formality.