I feel like that argument ignores the material analysis that would need to be made before settling on what needs to be dismantled. American capitalism is the hegemon. It is, in no uncertain terms, the center from which all other systems of capitalist currents flow out of (Read Long Twentieth Century). We are operating in America's world system, a system that ideologically claims to be a free market while imposing tariff and protections to stop other countries from benefiting wholesale from American markets - in the process of "loosening tariffs" the American diplomatic body pressures, and bribes other countries to adopt neoliberal reforms; neoliberal reforms come in the way of laws, and market systems, those economic systems give rise to neoliberal politicians, which oppress and pillage their own people, and rotten cultures that treat their workers as disposable. China opened up to America and had to make certain agreements, like market reforms. Countries that refuse to adhere to these neoliberal policies end up isolated and cut off from other countries unless they are willing to play politik with America's opponents.
So if I am seeking to end capitalism as a whole, and we are really playing by America's rules, what cause do I have to focus on Chinese Capitalism (I'm using your terms, I don't think China is, in my dumbass opinion, wholly capitalist). Especially as someone that lives, breathes, and exists within the imperial core?
Chinese Capitalism (according to you) exists because America exists and sets the rule of the game. Putting pressure and collapsing the American center, pulls the rug on the entire system. If I want to show solidarity with the Chinese worker, then I want them to survive in a stable country (not one balkanized and turned into a warlord's paradise, like America wants to do). I want them to assert their rights to their labor and all it creates without the U.S putting pressure on China to suppress, an alleged, communist reemergence.
Hundreds of thousands of workers thus wander hundreds and thousands of versts. Advanced capitalism drags them forcibly into its orbit, tears them out of the backwoods in which they live, makes them participants in the world-historical movement and brings them face to face with the powerful, united, international class of factory owners.
- Lenin “Capitalism and Workers’ Immigration”
The Communists are distinguished from the other working-class parties by this only: 1. In the national struggles of the proletarians of the different countries, they point out and bring to the front the common interests of the entire proletariat, independently of all nationality.”
- Communist Manifesto, Chapter 2
The headquarters of the international class of factory owners (and financial capital) rests in America. So again, the only way to destroy the system is to advance the collapse in America, insofar as it weakens the leash with which they control other countries and their workers. As someone born in Venezuela and has experienced this firsthand. It's very clear that as long as America exists my people won't have the economic siege warfare placed upon them (see UN Human Rights report on Venezuela) lifted. Thus my criticism should not go towards the Maduro government doing the best it can with the material conditions as controlled by America, but America itself.