The US may well implode into anarchy and/or civil war before they get their space force up and running on all cylinders.

Quite possibly. I'd say this is USA's greatest concern, not China.I think USA will defeat China. Frankly I hope they do, assuming the alternative is a world where China is the great superpower. USA are cunts, but China are even bigger cunts. I can't see why anyone would seriously want them to displace USA. Trump is surely the lesser of two evils.