What do you picture when you hear the word ‘extremism’? Clear ideologies, organised groups, anti-democratic chants? Perhaps it’s something similar to the upsetting sight I witnessed in Hyde Park recently: Nazi swastikas, and the words ‘Britishness is Whiteness’, proudly displayed on protest placards.  Long-standing forms of extremism clearly persist and must remain a central focus of national security. But a report by the Home Affairs Committee, published last month, paints a more varied picture. It…