Unless they are high enough - like 50% - it won't shift anything domestically and just raise prices. On most things we import, the difference is so high there is no incentive for domestic companies to shift supply chains.
The goal would to move production to the US and employ more US workers. The problem is the automation levels in the US compared to Chinese or other countries is much higher so you'll basically move 50 jobs from overseas to the US for 10 jobs at a 40% price increase. Idk it could work for somethings but not everything why tariffs usually are targeted at strategic industries.
A better strategy would incentives via tax write offs to companies buying/making things domestically and heavily tax companies like Apple who sell Chinese made products.