It is a big deal.
Not paying US taxes but getting US naval protection in theft.
I’ve never been expert in the area and am pretty rusty on the details that I’ve bumped into over the years ... but I have the notion that the issue is not U.S. taxes. The issue goes back to the Jones Act and has expanded over the years to include U.S. labor law and the regulatory and litigation climate.
We do a lot of things apart from taxes to drive industries offshore.