Interesting. I researched and wrote a little article about 15 years ago called "Je Me Souviens: Remembering Quebec" ..http://www.caelumetterra.com/cet_backissues/article.cfm?ID=26) -- I was perplexed about what could cause the seemingly out-of-the-blue cultural sui-genocide (or spiritual geno-suicide) of what had once been a vibrant Catholic culture.
All pretty much accomplished before VatII.
I'm still puzzled about it, but it looks like at least some of it can be attributed to a corrupt clericalism. You had priests and vowed religious occupying many, many positions of power who had influential "clerical careers" but who no longer possessed the Faith.
They did not fight and lose the good fight against the intrusions of the secular state. On the contrary, they gave away the keys of the city: it was a case of willing, even enthusiastic, pre-emptive surrender.
Paradoxical detail: even though during the 60's a third of the nuns and priests in Quebec abandoned their vows --- many ostensibly to marry --- the birthrate plunged. While the clergy were abandoning celibacy, the laity were abandoning childbearing. Interesting.
If anybody out there can explain Quebec's catastrophic "Revolution Tranquile" to me, I'd surely appreciate it. Shouldn't there be a book about it somewhere?