Widespread, violent rioting across the United Kingdom underscores the growing threat of far-right extremism amid rising anti-immigration sentiment, political polarization and disinformation campaigns, but the unrest is unlikely to significantly destabilize the new Labour government. Violent far-right demonstrations have been taking place for over a week in multiple towns and cities across the United Kingdom. Violence first broke out on July 30 in Southport, Merseyside, as far-right groups rioted in front of a mosque amid speculation on social media that a 17-year-old male arrested in connection to a mass stabbing attack that killed three young girls and seriously injured five others in the town was a Muslim migrant. Despite investigators dismissing rumors about the identity of the attacker, riots spread across the country over the following days, including in London, Manchester, Liverpool, Sunderland, Blackpool, Bristol, Hull, Leeds, Middlesbrough and Belfast, resulting in clashes with the police and significant property damage....