A lot of companies only import...because there used to be few tariffs.

If they don't have other options, then they are stuck, and they just have to manage the financial consequences of their past decisions.

My companies have manufactured in the US and outside the US. When deciding to shut down a US assembly line and move it to China (just for example), tariffs are of paramount importance to the decision. Not sure how often you get to sit in rooms when a global company is deciding whether to layoff Americans and hire Chinese, or not, but I imagine that you don't get to sit in on many of those conversations.