China is heavily dependent on trade with The West, in a way that The West is not dependent upon China. And that doesn't factor in Asian economies like Japan, Korea, Taiwan, and Vietnam that are generally likely to side against China.
They've imposed sanctions on US weapon companies recently. Soon once their domestic airplanes are semi-competitive with Airbus, they may even sanction Boeing.
It's the first country that has been able to make that threat credibly in.... ohhh, a long long time.