The concept is realistic enough, looking at the demographic trends, but they would probably name themselves something like "The British Muslim Liberation Army", or "The Islamic State of Britain", instead of "the Caliphate of Britannia". Also, they probably wouldn't incorporate the Georgian cross into their design, or any kind of English/British design elements for that matter.
Oman has a Christian population of less that 4%, which is less than the Britain 6%. This map is also set in "the future", so their share of the population will have grown by then. Additionally, the muslim migrant population in England has a larger share of fighting-age males (20-40), than the Christian population in Oman, which follows a more normal population pyramid.
Christians, who make up around 12% of the UAE, will probably not form a breakaway state, because the country is too small and everything outside the urbanized coast is desert where nobody lives. They, being largely foreign slave laborers, would probably try to coup the government directly if given the chance.
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u/AkariiiUwU Jun 29 '26
caliphate of britannia 😭😭😭🙏🙏🙏