This is the companion of secularism where the state opposes all works and persons of religion.

Anticlerical societies are usually societies in decline. France is a good example0

Actually, I think you're off on this one Genghis. I think it has more to do with the religious sects that reject the authority of the clergy, and view mainstream churches as "apostate churches" in league as the Whore of Babylon with the multiheaded beast of the state. I choose "I don't know" because as an outsider to religion I don't feel qualified to argue what is best for those within the religion.