It can be sometimes problematic to do a "when did this all begin" because that can keep going backwards.
But that's my point. Yes the Church has been weakened by the NO Mass and Priests not preaching the faith etc etc. But you can't pin point an exact moment and ignore the years leading up to it. The institution of the NO Mass was a drastic change to the Mass and is part of the problem. But its not the end all be all root cause. There's a lot more to Vatican II than just the Mass.
Destroy the Mass, destroy the Church - there is absolutely no way the crisis would have taken control if the Mass was left alone. It HAD to be done away with for many reasons, same as it had to be replaced with a mockery of it for many reasons, chiefly, to lead people astray - that is what enemies of God do.
When the NOM was "new", people, including clergy, seminarians, nuns etc. were leaving the Church in droves all over the world regardless of what led up to it, it was the change in worship that was the straw that broke the camel's back. History bears witness to this fact.
The entire NO/VII revolution, for the most part, comes down to two questions at least for me:
Can the Church give error? Can the Churh give evil?
Why contemplate on something absolutely and completely out of your control?
Look at what has been done, see it is wrong, *do* what is right - aside from this being our primary obligation, this is well within everyone's capabilities. This is what is needed from us all regardless of "how" it happened.
Back when the NO was perpetrated as more or less a sneak attack, the lethargic masses were easily fooled as history relates - but what excuse will God accept 50 years after the fact, in an era of instant communication where information is instantly available at the click of a mouse and where the enemies and the errors have been discovered and exposed to the entire world many times over for the last 50 years?
