One only needs to read scripture to understand who the true Rock of the church is and the RCC is lying about it. That alone would eliminate it from being the true “church”.
Is this where we trade proof texts and interpretations of Greek and Aramaic - ending with each of us still convinced of his own argument with a third in the wings to disagree with us both, dividing into three-out-of-three versions of what constitutes the Christian Church?
Which is true? Do we take a vote or not?
According to whom?