Too late! I'm already typing an 18 paragraph response to this meme
So at what point are the productive forces sufficiently developed?
When capitalism reaches the next crisis?
also they probably want to finish the Belt and Road first so they can secure their international trading lanes from the US Navy. Right now the US can just park a carrier in the Malacca Strait and cripple China's trade if it came to that.
You want as much of an advantage in development as possible when you open yourself up for hostilities with the entire capitalist world, its not a smart strategy to just go "Ok now its technically possible as long as no one is mean to us :)"
China still doesn't have a permanent proletariat. The majority of China's proletariat are only temporary proletariat that are only working to bring extra money to their petty-landowner income. China will have to get a large permanent proletariat before being able to advance.
I'm not super aware of China's political history but I must say I love this meme
