yes, but it's a very very bad precedent to set, since it wouldn't stop them from doing the same thing to other POTUS. it generally violates the fundemental concept of democracy if the side that can't get their agenda across by the rule decides to do it outside of the rule.
We're already in China big time forever, Taiwan is the single largest foreign invester in China since the 80s and still is (it just doesn't "count" as foreign investment
) it's just that, these moves announced last week is basically tiny in the scope of what we're already operating in China anway. Foxconn for example is a pure Taiwanese company. and it hires more Chinese than most country have people
(not much of an exaggeration, Foxconn has a staff of at least 1.2 million people!!!!! majority of them are mainland Chinese on assembly lines)
A truely significant change in scope would be a FTA between th two side, or something equalling that, it's the same thing with Taiwan and the US, the economic relationship is already huge between the two side to make it sigifnicantly bigger requires pretty drastic measures.