Well… not so fast, I wouldn’t claim that those are the responsibility of Vatican II, of the OF, or of 12 year old girls acting as altar servers.
I would actually lay the blame for those, as well as the low ordinations, on society itself. Worldwide, the “post V-II” period has seen the fastest growth of the Catholic church in the history of the Catholic church. Korea and Africa have so many priests and deacons that they don’t even need EMHCs or altar servers. The priest shortage, likewise, is a purely western phenomenon… today there are only 10,000 priests less than there were 50 years ago, but that is because priests outside the west have grown, while the west has lost a significant number of priests.
It’s not the fault of the mass or of disciplines in place since V-II, the failure in the west is a problem with us congregants in the west. It is our fault, our fault, our most grevious fault. If we were doing our catholic duty, these would not be issues.