Another year and a half is a long time to make your people suffer. And a lot of the supply chains that moved out of China might not come back. Waiting is a hell of a gamble.
I'm not sure a year and a half of unfavorable trade means much to a dictator who declares themself dictator for life, imprisons millions of citizens in re-education camps and engages in mass censorship.
Good thing the Chinese people have no history of violently overthrowing their rulers.
Plus, there's a disaster brewing with the Chinese hog epidemic . Going to be lots of starvation in a year or two.