If you think the Vatican II sect currently in Rome is the true Catholic Church of the ages, then your incredulity is reasonable and expected!
Public heretics and apostates have severed themselves from the Body of the Church; to call them Catholic is an absurdity.
i am including the roman sect as far back as the reformation. The errors called out there still stand and were widespread prior to that. However you want to parse your sect currently is up to you but the sign on the door says Roman Catholic so until that changes you all own each other.
Arent you making the very argument made by the Reformers?
In your calculus are there members of the Body of Christ who are not and never have been Roman Catholics or any Catholics?
Where do you mere pew warmers get the authority to JUDGE to folks in power in Rome?
Aren't you afraid that you might accidently slip into Protestantism?
So the true Catholic Church hasn't existed since the 60's??? Then why do you keep going???