It's the same with every western european country. I can't lay my finger on it, but my very own, unsupported theory is, that the establishment of state religions ultimately led to people leaving the churches. People came to associate the church with the state. The very churches that were in support of two world wars. On either side the same god, but only one side could win.
In the USA, every wayward preacher feeling like it could found his very own church and sell his very own brand of snake oil there. I guess that's why religion hasn't experienced the same kind of downwards trend there. Now it does, with the arrival of a younger generation and new media. But not to the same extent as in most European countries. I guess, and I stress again, that's only my personal observation, if there had been a state religion established in the USA, things would be looking differently.
In the USA, every wayward preacher feeling like it could found his very own church and sell his very own brand of snake oil there. I guess that's why religion hasn't experienced the same kind of downwards trend there. Now it does, with the arrival of a younger generation and new media. But not to the same extent as in most European countries. I guess, and I stress again, that's only my personal observation, if there had been a state religion established in the USA, things would be looking differently.