The great German writer Martin Mosebach wrote an essay on the tridentine rite a couple of years ago and that essay is now reprinted in First Things. See https://www.firstthings.com/article/2017/04/return-to-form
Mosebach points out that the second Vatican Council did NOT proscribe the old tridentine rite but instead instructed and prescribed continued use of Latin and never assumed that ad orientam worship would change. Still less did the council fathers envision a new “iconoclasm of the altars” that took place after Paul VI endorsed use of a new missal. The smashing of the altars and the destruction of traditional catholic imagery and statuary in numberless churches across the world was every bit as destructive as the protestant smashing of the altars that took place centuries earlier in the wake of the furies of the protestant revolution. The fact that these iconoclastic outrages were occurring from within the church itself must have made non-Catholic onlookers believe that the protestant revolution had been right after all. Perhaps the Bishops that promoted this iconoclastic spasm were thinking that this second protestant revolution would convince our protestant brothers and sisters that catholics were serious about dialogue with them and then protestants would flock back to the one true church and we would be united again!
But alas; the envisioned rapproachement between catholics and protestants has not happened. Instead the numerous protestant sects have continued their inevitable dissolution into Unitarianism and the catholic church has slowly begun to follow the same, disastrous “liberalizing” path as the protestants. That path we all now know leads to heresy…a kind of no-offense-to-anyone doctrine that ends in Unitarian pablum where Jesus is depicted as a milquetoast and perhaps interesting ancient rabble rouser and moral leader but certainly not a divine being who demands obedience.
Mosebach argues that an organizational change in the catholic church abetted the protestantizing of church since 1968: namely the organization of the Bishops into national Bishop conferences which directly contradicts ancient canon law on Bishops rules and procedures. Nationalism inevitably begins to rule the conferences rather than the universal church.
In any case I highly recommend Mosebach’s book and this essay.