...which kinda backs up my #22 response to #16, right?
I think you are seeing into a contradiction, or seeming contradiction. If there was a Big Bang, there would be a “center of the Universe”. If there was such a point one might wonder if that would not be a “preferred frame of reference”. Einstein did not seem to think there would be one and to date all of Einstein’s predictions based on his theory have held up, AFAIK.