Shocked by BNP party political broadcasts?

I saw a BNP broadcast spouting the usual barely disguised racism but i was still amazed when they started saying basically how our grandparents died in the the war to keep britain ours and that they wouldn't want ethnic minorities living here. They then had the nerve to show the graveyards of the WW2 solders. Ive been to those graveyards and i know for a fact that there are foreign regiments who fought and died for britain and those soldiers are buried alongside our relatives in those graveyards. How can the BNP overlook this and even go as far as to show clips of the graveyards where there could be foreign troops buried?