Of course, that is what Protestants are “supposed” to appeal to. Most mainline Protestants are unregenerate liberals (just as many northeastern Catholics are) and thus, not consequential to this discussion.
Ha.
A key tenant of protestantism is that any man can interpret God’s word infailably by reading a book.
That is not an authority.
Protestants can’t see the forest (the Holy Spirit [God folks!]) through the trees (The Bible, a physical translation of a bunch of words which are not something of themselves but representations of ideas which cannot be understood apart from the Holy Spirit which breathed them into the writers)