So let's say that the stories of police and government brutality and mistreatment of Uyghurs and protesters in Hong Kong keep getting worse and worse. Eventually, popular opinion in the West gets to be too much, and the western countries enter in a pact to put a massive trade embargo on China, unless China would agree to full transparency on treatment of minorities in China. Despite being faced with the total destruction of it's economy, China refuses. What happens next?