Bringing your supply chain to the US will take longer than the time trump will be in office.

All the companies who are able to weather the storm will simply tough it out. The rest will die.

It’s not the tariffs themselves that will have an impact but the second order effects. In the new world we have a full blown trade war between the two biggest nations on the planet. It’s not safe to have your supply chain controlled by a foreign power. They will move out of china. But they wont move to the US. It’s simply too expensive there.