"..gradual move towards democracy or non nuclear dictatorship.."Except that neither of those options are remotely in prospect for the foreseeable And while the refugee influx would be an enormous problem for China it wouldn't harm the USA. A dangerous dilemma; a binary choice between a hostile state armed with nuclear ICBMs and a preemptive (maybe nuclear!) attack. Not great options for anyone but China with most to lose has done least to prevent it.