Notice, I didn't say that you were not Catholic. I said IF YOU THINK THAT, you aren't Catholic. Big difference.
Yes, I do know a modicum of history and I have seen that particular quote of Bellarmine's used incessantly by both schismatics and sedevacantists.
I also know that Bellarmine would rhetorically bitch-slap anyone who appropriated his thoughts to defend either schism or sedevacantism.
If you have ever seen the normative Mass celebrated on EWTN, I doubt you would think it was "radically changed." I used to drive 90 miles, one way, to St. Robert Bellarmine in Miami to attend the Indult Mass. I also like the 1962 Roman Missal but hee Mass of Pope Paul VI is supposed to be the normative Mass for every single Catholic. A special motu proprio was issued for those with an attachment to the 1962 Roman Missal and it is a mistake to think that will be the Liturgy one hundred years from now.
Liturgies change but the Mass remains. The Roman Canon itself was changed over the years. Prior to Pope Siricius, Mass was in Greek. Ought the Catholics of 400 a.d. to have started rebelling and establish a specific order in opposition to Rome - the Society of Pope Hyacinth - to celebrate the "mass of all times" the Greek Mass?
Hey, it sounds good to me. But then to us "change" is a bad word.
I don't think your statement that the canon has changed over time is specific enough. The Roman Canon was fixed at the time of Gregory the Great. It remained unchanged until Pope John XXIII inserted St. Joseph's name into the Canon, causing a great uproar. Of course now, the canon no longer exists. You can't have multiple canons, it denies the meaning of the word.
I have seen the Mass on EWTN, and I must say that I disagree with you. I do see it as a radical change. Aside from the smells and bells, and the Latin, it is no different from the most outlandish charismatic mass. I have attended very reverent Novus Ordo masses, even in Latin, and they depress me just as much as the worst Novus Ordo masses. As to what the mass will look like in 100 years, who knows?