If your product is imported through China as the supplier, depending on how you structure your arrangement, it can be sourced from wherever you like, at least on paper.
again: that's fraud, it's illegal, and the consequences begin with getting your whole shipment seized.
if you want to smuggle products illegally, that's on you. but the parent's assertion was that tariffs can be trivially bypassed by changing the country of origin. maybe we have different understandings of "trivial", but for me it being illegal makes it non-trivial.