I don't know if it's the same people but many of the comments here seem the opposite of the comments on EUs rules where people say they're targeting specific companies and comments say "no, the rules are such than all companies over a certain size are covered". If the rule is 85% domestic than any company can do it. I'm not saying the tariffs are good. Only that their point is to get things made domesticly
Otherwise I don't see any other rule that would ask the foreign company to move most of it's workforce and production capacity.