It's not like Chinese capitalists don't hold any power in China. Capitalists and non-capitalist bourgeois hold their wealth in USD. (And the working class also have a lot invested into their savings, though in RMB). So it's unpopular to do anything to drastically affect their savings. But on top of that, China and Chinese businesses obviously trade currency with the outside as a matter of operation. What are the effects on that trade if the world's wealthiest country suddenly completely recontextualised the value of it's currency?

(I liked the meme by the way).