They pounce on bloggers who dare mock their beloved Chairman Mao. They scour the nation’s classrooms and newspapers for strains of Western-inspired liberal heresies. And they have taken down professors, journalists and others deemed disloyal to Communist Party orthodoxy.
China’s Maoist ideologues are resurgent after languishing in the political desert, buoyed by President Xi Jinping’s traditionalist tilt and emboldened by internal party decrees that have declared open season on Chinese academics, artists and party cadres seen as insufficiently red.
Ideological vigilantes have played a pivotal role in the downfall of Wang Congsheng, a law professor in Beijing who was detained and then suspended from teaching after posting online criticisms of the party. Another target was Wang Yaofeng, a newspaper columnist who voiced support for the recent pro-democracy protests in Hong Kong and then found...