Steve said: "Notice that Bryan isn’t quoting from any infallible magisterial interpretations of his prooftexts. He treats Scripture as perspicuous. And he relies on his private interpretation from start to finish." This is simply a straw man and unwarranted insult. Scripture is largely perspicuous, just not to the degree that equates to Formal Sufficiency. For example, the phrase "This is My Body" is 'plain English' to everyone reading. What isn't clear is whether this is literal, symbolic, or something in between. That's the problem. When a Catholic approaches Scripture on such questions, they are to read it just as a Protestant does: The Analogy of Faith. Not every verse has to be infallibly interpreted, the only thing the believer needs to keep in mind is that no interpretation he comes up with can contradict what is already established dogma.
I accept your concession. Scripture is clear enough to falsify unscriptural Catholic innovations, viz. the papacy, Marian dogmas, Purgatory, indulgences, the treasury of merit, the cult of the saints, &c.