US did her best to stop VN in VN war (but still failed), so its easy for VNese to know what USA will do to destroy CN (in 2023). CN is weak, corrupted and useless, thats why after VN war 1975, Deng had to beg for help from daddy US-JP in 1978 cos he felt that VN would surpass CN soon cos we r much smarter, we defeated mighty US when CN can not and we will be stronger when we can unify sub Mekong region.
CN has almost Nothing to fight back US, she doesnt control any strategic position like VN (we control 60-65 % of SCS(east VN sea), a crucial shipping route for SK-JP-CN-Guam of US) her PLA also suck, corrupted wt terrible human wave tactic that no longer work, so its easy to predict that CN will be in chaos in 2023 when US start thrashing her