The trouble is you cannot reason with those who have made up their minds without reason. Make America Great Again in the US and Take Back Control in the UK were dog whistles to which people reacted with no thought. How do you counter such populism? Hopefully, if there is one good thing comes out of the war in Ukraine, it will show people how propagda works. Whether those who voted for Trump or Brexit will accept that they were duped by populist sound bites is another matter :-(