its because britain has a whole cottage industry of films and tv shows about how we were the last bastion against fascism in europe and like mythologising the blitz and the d day landings and GCHQ and the SAS and churchill and every brit is fed this nationalist soup from birth. So nowadays our fascist movement's main defining characteristic is how much it celebrates soldiers who died killing fascists and how fascists celebrate the (supposedly single handed) defeat of Nazism at the hands of Britain in between doing nazi salutes and blaming Charles de Gaulle for every single thing that went wrong in ww2