There is a significant fraction of this country who hate it with a vengeance, despise all the trappings of statehood and heritage, and would gladly see us run by some other foreign power than accede to the legitimate democratically expressed will of its people. These people hated Boris before he was born, in fact they hate the very idea of a Boris. They would prefer him to cycle to international conferences in sack cloth and ashes followed by a chariot full of Grauniad readers flailing him with chains and thorns.
Speaking for myself, I actually would like to see Her Majesty and the Prime Minister travelling to state occasions in an aircraft appropriately liveried in the flag of this country, affording them the dignity and respect which they deserve. The previous VIP aircraft from Northolt had a perfectly respectable design.