It is no longer a matter of ‘abolishing’ the monarchy as such a political act has already been achieved in the UK through years of bloodshed.
Oliver Cromwell was a very civilised, intelligent and progressive individual. He was also a devout Christian. Why, then, did he agree to ‘ban’ Christmas? He carried out this progressive measure because he thought that it was a great evil for the State to ‘enforce’ a religious celebration upon its citizens. As a consequence, Cromwell oversaw the legislation that ‘banned’ the State sanctioning of a national holiday that had, in his and many other Christian’s eye, no connection with legitimate Christian practice.