China's national bourgeoisie has a seat at the table, but there are plenty of recent examples of them being brought to heel by the CPC. So, while they definitely have some capitalist productive relations I'd hardly call them capital-C Capitalist in the "ruled by capitalists" sense of the term.
Compare with the US where the capitalist class not only has a seat at the table: they are the table. And the chairs around the table, the room the table is in, the building the room is in, the property the building is on, the people who go in and out of the building, and the bullets that shoot anyone who tries to enter the building who isn't supposed to. The US is "more capitalist" in all the ways that count - what might be confusing you is that China has more sustainable and powerful relations of production which is why they're overtaking the US. But that doesn't make them capitalist.
Compare with the US where the capitalist class not only has a seat at the table: they are the table. And the chairs around the table, the room the table is in, the building the room is in, the property the building is on, the people who go in and out of the building, and the bullets that shoot anyone who tries to enter the building who isn't supposed to. The US is "more capitalist" in all the ways that count - what might be confusing you is that China has more sustainable and powerful relations of production which is why they're overtaking the US. But that doesn't make them capitalist.