What would the world be like with China as a unified country, instead of a north/south split? I know there are still some die-hard anti-Communists out there and I know that this is unpopular to say, but I personally wonder if a unified China would have led to a safer, more secure Asia. Instead, we have to deal with a hodgepodge of warlords, the Nationalist dictatorship, Buddhist monarchies, Communist Northern China, and whoever else I've forgotten. I mean, the United States is still combating opium production in Xinjiang after fifteen years there, for Chrissakes!
What would a world with a unified China look like? Would Northern China still be the cesspool that it is in OTL?