Some Baptists prefer to think of their church as the one established by the Apostle Paul or John the Baptist, or some other biblical figure...
This is palpable nonsense. The claim that Baptists are distinct from "Protestants" has little do with any "founder". There is no such entity as "The Baptist Church" in the sense of "The RC Church". TBC is merely a convenient term, but that is all.
Baptists believe in individual salvation apart from any earthly organization, We require no "church" to either authenticate or assist in salvation. One of the pillars in what we call Baptist theology is the priesthood of the believer.
IOW, I don't think it can be said that either the Anabaptists or Baptists continuously existed as a group distinct from the catholic churches (RCC and EO) prior to the Reformation. In that sense, Baptists and Anabaptists are protestants.
It doesn't matter. We don't need a library of centralized works from which we can determine what we should believe or who was head of some "Baptist Church" in the 3rd century. You have the entirely wrong concept of the church.
"Protestant" is a RC term. In the US it applies to even Mormons. It is a manmade distinction that no Christian should take upon himself.
What if I attended a conference of Baptists and we voted to call anyone who diagrees with us from that day on "Contrarians". Should every group we've tagged "Contarians" suddenly start grouping themselves together? This is ridiculous.
I am not a "Protestant." I don't let a term that has no theological basis to it define me. It is not my term, it is not a biblical term. The evidence for individuals who met as Christians separate from the RCC and EO is readily available.
Truth is not determined by either history or by numbers. Salvation is not passed from one generation to the next. Each individual must decide for himself what he will do with the gospel. He must decide what he will do with the Word. It matters not what he labels himself or what his enemies label him. Either that individual accepts the gospel or he does not.
What on earth does "being a RC" mean anyway? That you adhere to a certain set of doctrines? What does that mean? Are you suggesting that absolutely nobody disagreed with the doctrines of the RCC for 1200 years? Even before the Reformation there were great movements and men like Hus and Wycliffe, etc.
Heck, if you randomly assemble 20 RCs in a room and go over the doctrines of just Trent and Vat2 I guarantee you'd get 20 different opinions. Are they "protestants"? Or are they not "Protestants" merely because they still call themselves RCs?
The term and the discussion are based on false premises from which you can only get false conclusions.