Interesting ideas there unclebruce,
If Paul were a Herodian (as at least one scholar posited), he'd definitely have a vested interest in keeping the Establishment going. There were a number of messianic movements (anti-roman) in Palestine around Paul's time. James the Just (the Bishop of the Jerusalem Church if not the first archbishop for the entire early christian movement) was apparently very popular with most of these Palestinians. Someone Rome and the Herodians wouldn't mind quieting. If there's actually some truth to the PseudoClementines, then Paul physically attacked James (with a piece of wood) at the steps of the Temple. Its tantalizing to consider the idea that when that approach proved ineffective he opted to co-opt the movement with an influx of Gentiles, and teachings syncretized with some of the popular pagan mystery religions