A conference run by a rightwing US thinktank might be expected to feature robust discourse on culture wars and identity. But the National Conservatism gathering has gone notably further: with speeches using terms linked to antisemitism and the far right. The debate over “cultural Marxists” and “globalists”, as used by onstage speakers at the gathering in Westminster, one of them a Conservative MP, is a microcosm of the wider jostling about the populist right and language. On the one side, self-styled free speech defenders insist any worries are confected, an attempt to stifle debate and to unfairly link conservatives with...