250 million more chinese without the one child policy, no economic reform and probably a policy of solving population issues by blackmailing "allied" states to take in chinese immigration -- Mugabe and Mandela in TTL would be remembered as the men who led their respective countries into becoming mostly ethnically Han.
It's not "turning chinese" it's "accept immigration from a fraternal ally in the people's struggle"...
This... no, what the fuck are you trying to say? This is some 'Yellow Peril in the Darkest Continent' type mentality that has both no basis in reality whatsoever.
What specific sources do you have about Chinese plans for emigration to Africa before 1956?
Okay, I think the initial sentiment here was that a PRC which didn't lower its population by mass deaths or by One-Child Policy would end up with more people than its (likely unreformed) economy would be able to provide adequate opportunities/infrastructure/whatever for. This would probably lead to emigration-- if not as a top-down policy of forced exile then at least as a bottom-up policy of people just leaving to somewhere that will take them. But if there were not countries willing to take them, then Beijing
may have reason to influence countries to do so, and this would start with the countries it has the most influence over-- which is to say, African countries recently overtaken by majority-rule movements.
The most obvious problem with this, though, is that by the time overpopulation starts to be seen as an issue (probably the mid to late 70s) there
are places where Chinese emigres can go: Southeast Asia and the West. And for every country that shuts its doors from nativist sentiment (Suharto's Indonesia, probably Malaysia too) there'd probably be another that's more permissive (Thailand? Philippines? Singapore?) or which can't police its borders even if it wanted to (Burma). I just don't see why the routes over Yunnan to Upper Burma, over Guangdong to Hong Kong, or over the sea to wherever would lose their centuries-old importance. And of course,
there's plenty land within China itself-- overpopulation in East China may just flow over into the
cities of the West and North (Lanzhou, Xining, etc), with some
encouragement from higher up.
The other problem is that China's influence over African liberation movements isn't that strong-- China provided lots of military aid, but these movements' main priorities were solely their own. The ANC was able to gain the acceptance of the West very quickly, so I don't see what leverage China would have over it. UNITA went even further-- despite Jonas Savimbi being trained in China, he became a Western-backed opponent of the MPLA. The only way a Southern African country would accept such a forced change to basic policy would be if it was utterly diplomatically isolated and dependent on China... at which point few Chinese would actually want to move there. Seriously, why would a people that have historically been an urban diaspora seeking opportunities as businessmen and educated professionals move to a pariah state with no links to the world economy? And that's assuming the country which accepts such a forced change actually remains stable enough to see it through. Considering that nearly every communist-leaning Southern African liberation movement had a great internal struggle or civil war with a local rival (ZAPU, RENAMO, UNITA, etc.), that seems unlikely.
Put simply, a majority of Chinese emigres would probably move anywhere but Africa. And even if so many millions did move to a given African country as to turn a sizable proportion of the country Chinese, the country in question can likely avoid being
forced to accept them, either because the government leans on non-Chinese allies to resist the pressure or because the government faces a fatal challenge from within as a consequence of giving in to China.