Have you seen the internet meme which suggests that Donald Trump’s ‘divisive’ rhetoric helps Isis gather support and grow in size? It’s been getting a lot of likes and shares, possibly because it contains an element of truth. Certainly Isis seems to buy into the idea, which is why they featured The Donald in their triumphant post-Brussels video. Trump and Isis feed each other. They both thrive on and exacerbate a sense of western decline.
But the politician who has done most to help Isis grow is not Donald Trump.