"Next year or two" is extremely unlikely. The US is absolutely no going to switch back to a manufacturing base. It's only attempting to gain leverage against adversaries when it comes to critical supply chain components. China is all but guaranteed to see slowing growth compared to the past 40 years simply because there aren't enough farmers left to exploit for cheap labor and living standards are already so much higher. They'll be in for mild economic winter then emerge just fine. Famine seems incredibly unlikely anywhere in the world.