You wrote:
“Which means there can never be a Protestant caucus.”
Sure there can be a Protestant caucus thread. If you post a thread about the doctrines of, say, the Methodist or Baptist or Presbyterian sects, then that would be a Protestant caucus.
Is that list exclusive? Or maybe you should just post a list of the topics the Catholics will allow Protestant caucus threads on. The confession which this thread posted was pretty much consistent with the Westminster Confession which IS the "doctrine of Presbyterian (and most reformed)sects". Or maybe Protestants should just ask your permission before designating any topic a caucus. As I said, this thread was a very eye-opening experience and asnwered a lot of questions.