I just don't think that all civilisations are the same. China is unique in how similar modern culture is to ancient culture. All other civilisations have changed much more. That doesn't mean they're not civilisations
Modern western civilization is derived from the Greek and Roman civilization. It might be unrecognisable and many new people joined the civilization, but that doesn't change that it's a civilisation. It's actually much more common than the unique case of china
Chinese civilization is two things, that is unique, and that is it is continuous and consistent.
No one else did it that way.