A quick & dirty plan.
Pull out of America until after the elections. If the temper tantrum throwing idiot gets voted out & the next leader rescinds all those bullshit executive orders then move back & resume business as normal. If he gets reelected then don't come back, establish a new home for that branch in somewhere more hospitable to doing business and consider the move as a win.
Either the idiot/rules go and you can come back or the idiot/rules stay in place and you prevent him from stealing your business out from under you.
If China decides to mirror the treatment to all American corporations operating in China then there won't be a damned thing the idiot can do about it since it's just using his own rules. If he doesn't like them then he can either retract them or fuck right off.