London's status within the United Kingdom has been debated for several years, with some calls for increased autonomy,[2][3] Supporters have frequently cited Greater London's population of over 8 million people, its economic size, its global role, its diverse population and its unique challenges compared to the rest of England as reasons for greater autonomy.
Supporters cite London's status as a "world city" and its demographic and economic differences from the rest of the United Kingdom, and argue that it should become a city-state based on the model of Singapore, while remaining an EU member state.
John also said "London would be the 15th largest EU state, bigger than Austria, Denmark and Ireland and our values are in line with Europe – outward looking, confident of our place in the world, enriched by our diversity and stronger working together with our friends and neighbours than we are alone.
"[13] Labour MP for Tottenham David Lammy wrote a piece in the Evening Standard in March 2017 arguing in favour of London becoming a city state in the event of a Hard or No deal Brexit.
Brian Groom of the Financial Times wrote that "it is ludicrous to think of any nation gladly waving goodbye to its capital", calling the idea of secession a "fantasy".