A Golden Dawn supporter raises his hand in a Nazi-style salute during a rally in Athens in 2014 [Yannis Kolesidis/AP Photo] A Golden Dawn supporter raises his hand in a Nazi-style salute during a rally in Athens in 2014 [Yannis Kolesidis/AP Photo] On Saturday, tens of thousands of anti-immigration protesters are expected to march through the streets of London under the banner “Unite the Kingdom”. Leading it will be Stephen Yaxley-Lennon, known as Tommy Robinson, the oft-described combative Luton-born, anti-Islam activist who has long rejected the label “far right”. He frames himself instead as a defender of free speech and as a patriot. Robinson’s supporters have turned the denial into a rallying cry of their own, often carrying banners that say “We’re not far right, just right”. But academics who have spent years studying the anatomy of far-right movements and organisations like HOPE not hate - which track the far right closely - tell a different story.…