I don't know if you have always been specific enough when posting, though. When I made my comment regarding the unlikelihood of Protestant orthodoxy, I meant that there is no set belief system, doctrines, practices, or anything else in the Protestant pantheon.
That is why I personally regard the LDS as Protestant but not Christian (even though the Church does not specify whether they are Protestant or not - how can it?) because they came out of the Protestant movement, and still maintain a version of Scripture. The Protestant movement came about when people started to write their own doctrines and beliefs that were different from the Church's. The first group of Protestants had most of the things and beliefs that make up Christian. But as succeeding innovations and splinter groups with ever more creative theologies and beliefs came about, one might say that they became increasingly non Christian.
But it is difficult to pin it down. What is a Christian? A believer in Christ? Sure. What Christ? Was Christ God? Did He only appear to have a body? Was He a glorified man who became a god? Is the Holy Spirit God? Must you be baptized for salvation? Is there only one God with three modes of appearance? Is there only one God with three names? Must you confess your sins? To whom? Is there a specific priesthood with bishops and deacons? Must you eat the Body and Blood of Christ? Must you tithe 10%? Must you refrain from musical instruments at your services and go a capella only? Can you be fully and publically homosexual? What is the dividing line? Solas? TULIP? A point in time?
I gues you just have to be "Baptist," whatever that means.