I liked the questions devorgilla posed. The origins and conduct of the royal family throughout the centuries would probably not make comfortable reading - as she suggested, their power and access to resources, were likely to have been seized by force.
I didn't know much about the functions of the Privy Council but, from what I've read, it is a forum by means of which senior politicians and the leader of the opposition are briefed and allowed sight of important cabinet papers which they would otherwise not have access to. It is necessary to take the oath so as to be part of the Privy Council and it seems to me that, in order to be fully informed, Jeremy Corbyn has no alternative but to take it. The disgrace, I feel, is that he or anyone else would be forced to do so if they wish to carry out their jobs properly.
These forced acts of allegiance have been seen, and continue to be seen, throughout the world in all manner of regimes. They exist in order for those in power to entrench that power and compel others to yield to it - in the same way that Henry VIII made his subjects take an oath of allegiance to him as head of the Church of England. Fortunately, these days we do not have beheadings but we do have the threat of exclusion from the seats of power and influence to enforce conformity.
jingle I think to refer to Jeremy Corbyn - 66 years old and a much respected MP with 30 years' committed political service and an impeccable expenses record - as "this little upstart" is I think unnecessarily unpleasant.