And what is that historical basis (is Scripture part of it?) and your basis for assurance for its veracity.
In addition, answer the related questions you neglected. .
A true acknowledgement of what we have often documented.
the Holy Scripture is itself the product of the Catholic Church. Meaning, I assume, that that an assuredly (if conditionally) infallible magisterium is essential for determination [of] writings and men [as] being of God;
And that being the historical instruments and stewards of Divine revelation (oral and written) means that it is that assuredly infallible magisterium. Thus any who knowingly dissent from the latter must be in rebellion to God?
Or how else does the logic work that "we gave you the Scriptures, and therefore alone are the sure unreprovable standard on what it means/are a law unto ourselves?"
Yes, the Protestants are in rebellion against God. Good point.