IMO you are confusing China's peaking in annual GDP growth at...

IMO you are confusing China's peaking in annual GDP growth at about
4.4% P/A vs its GDP having peaked at the current $19 Trillion (approx)



Here's the US forecast of GDP by the same forecaster:




So, in summary, by these projections, China will pass out the USA in GDP (Nominal) by 2030
given that it has already passed out the USA in GDP (PPP) in 2015.

IMO GDP (PPP) is a better GDP comparative yardstick than GDP(Nominal -USD) bcause
it accounts for the respective countries domestic differences with respect to labour/costs of production etc etc.

So here you have it...eh?
Where's your evidence?