Taiwan, Hong Kong, Singapore and South Korea are already the main economic engines in that region, with the Philippines, Vietnam, Thailand and Cambodia developing.
I was saying that if China wanted to knock down one of its competitors and remove some US troops from the region it would just topple the commies in North Korea.
A hastily united Korea would probably impoverish Korea and remove the pretense for US troops on the peninsula. Not only that they could probably get a promise from Korea not to put any Korean forces north of the ‘38 to boot.