The burdened labor cost of China is about 25% of the cost of labor in the USA. It might cost $5/hour for a Chinese industrial worker but about $20/hour for a US industrial worker.
Tariffs would have to be on the order of 300% at a minimum to be effective against Chinese cost efficiency.
When a Chinese worker goes to his local ER he can expect a bill of the equivalent of about $5.
You are really mistaken. The amount of labor per manufactured (durable) item is a very small part of the retail price and averages around 6-8% and that is for domestically produced durable goods. For ChiCom made durable goods figure is around 2% per item pays for labor. A small tariff would balance that indifference. Maybe 10% tariff.
Free Trade theory is built on a mountain of lies and misinformation.