The thing is, everything that has been outsourced overseas was done so because it was cheaper. And it wasn't a decision made overnight or just one thing that prompted it. It was a combination of factors such as taxation, unions, safety laws, etc.

This presidency will last 4 years; maybe we get another Republican after, but eventually they will be another Democrat president.

All these companies that are being incentivized to bring jobs back to the US have to be doing the math and deciding whether it's cheaper to bring the jobs back to the US and take the hit in four or eight years when all the tariffs get dropped again, or to just suffer through the tariffs for the current presidency until things return to status quo and it again becomes cheaper to have everything made overseas.