Workers throughout China are flooding the streets in revolt as U.S. President Donald Trump’s tariffs slam the fragile Chinese export economy. From the cramped streets of Sichuan in the southwest to the cold outskirts of Inner Mongolia in the northeast, furious workers are demanding back pay and protesting mass layoffs as factories shutter under pressure from Trump’s tariffs. Outside a LED light manufacturing plant near Shanghai, thousands of unpaid workers shouted furiously at company managers over wages that haven’t been paid since January. In central China’s Dao County, a similar scene unfolded outside a sporting goods store after the company...