Thanks for a civil and interesting lesson. I see that, from your perspective, Protestantism evolved and assume for the intents and purposes of this discussion has only recently evolved to what you consider the truth. The problem I see in this is still the same, for Modern Protestantism to be correct, Orthodox Christianity has to be wrong, and we both can admit historical, original Protestantism was wrong, albeit for different reasons.
The problem is not admitting that "Orthodox Christianity" was manifestly not Orthodox as regards the NT church, as shown, and that thus the Reformation itself, though it basically corrected the salvific error of Rome, that of justification by one's own holiness thru sprinkling of water, and purgatory (usually), must be continued.