CNN — “Ireland, we are at war,” UFC star Conor McGregor declared to his millions of social media followers on November 22, 2023. It’s not clear precisely what McGregor was referring to, but this post, was viewed more than 19 million times on X, formerly known as Twitter. It was later followed by a series of tweets about immigration which were then circulated amongst Telegram channels, seen by CNN to have links to the far-right. As far back as 2022, McGregor had expressed his support for people protesting against immigration. The day after McGregor’s war tweet, a stabbing outside a...