During the cold war with the Soviet Union, they were called "Useful Idiots". These people were not members of the Communist Party, but they worked for, spoke in favor of and supported the ideas of Lenin and Stalin. In the 21st century, Communism is finally dead but Islamism has grown and is replacing it as a global threat.
Like Communism, Islamism -- or Islamic totalitarianism -- has been collecting its "Useful Infidels" the same way Communism collected its Useful Idiots. There is, however, an important difference: under the Soviet Union, Useful Idiots were intellectuals. Now, Useful Infidels are politicians, and one of them may be elected president of France today.
Emmanuel Macron, Useful Infidel, is not a supporter of terrorism or Islamism. It is worse: he does not even see the threat. In the wake of the gruesome attacks of November 13, 2015 in Paris, Macron said that French society must assume a "share of responsibility" in the "soil in which jihadism thrives."