My goodness, 'faithful', you are beginning to sound like a 'dissident'!!

If you don't accept what Catholic Biblical scholars teach us in the name of the Church, and what Vatican Council 2 teaches us in name of the Universal Church, maybe one of those protestant groups and protestant bible scholars are really what you are looking for.

I was led, recently, to 'google' Duns Scotus and how the  doctrine of the Immaculate Conception was argued about during  his time. Very Reveling! Most everyone else at the time argued that 'tradition and scripture and the Church Fathers' made it unchangeable 'doctrine' that Mary just 'had to be' conceived in original sin so as to be redeemed by Christ. Today, and - centuries later in 1850 -after it was declared to be 'revealed dogma' we say just the opposite.