Once the Royals are dealt with we move on to the titled and the lords. Purge them and take possession of their estates etc. View the crown as part of our history and open the palaces up to all the tourists. Then begin the work for a proper British constitution. A government designed to protect our people from the greed and indifference of the elite. Make truth and transparency a priority for MPs and all government officers at all levels. Remove any with dual nationality and divided loyalty. Make the military personnel sign an oath to serve the people and country. Work how to fairly unravel their deeds of the last hundred years and help all the countries in the commonwealth do the same. I could go on and on. It could be messy or not.
Mark Devlin is worth a listen to wake up on the music and entertainment industry. I don't agree with everything he talks about. That said he's a solid researcher but not in to Q.