With all due respect, I have not seen credible arguments from scripture, but I have seen lots of arguments that are fully in line with tradition. That is why many like me assert that Catholicism puts tradition over and ahead of scripture. That is, that Catholicism shapes scripture beyond reason to fit into the mold of tradition. We just saw this in our discussion of the Eucharist. With Jesus speaking, not only did the intended audience COMPLETELY shift in mid-thought, it completely shifted within ONE WORD. :)
I don't understand how your reference to our questioning of Catholic theology vis-a-vis God being a failure is relevant to whether you are modernizers. We simply question what we see as error, whether it is new error or error from the beginning of the Latin Church as we basically see it today.
As Forest Keeper knows, all my arguments with him are from scripture. Unless the teachings of the Church are misrepresented or history is misrepresented, in which case I would naturally refer to the authority of the Church or to the historical facts. When I explain the error of Protestantism to a Protestant I would do it from scripture only, since that is the only way to have a productive discussion with a Protestant. It is not hard to do: your entire theology is drawn from a few passages from St. Paul taken out of context and contradicts the entire scripture read in context.