Chinese revolutionaries collapsed culture, nation, and race into one identity by 1911

Evidence

The revolutionaries constructed a new sense of identity that narrowly focused on the Han race, pictured as a perennial biological unit descended from a mythological ancestor. By 1911, culture, nation, and race had become coterminous for many revolutionaries fighting the Qing dynasty. — David Theo Goldberg, John Solomos, A Companion to Racial and Ethnic Studies, 3325

Categorization

• XREF: This fusion of culture-nation-race is precisely the ethnic-vs-civic nationalism axis the OP knows from Anderson and Gellner; China here took the ethnic/racial pole explicitly.
• corroborated: 2 independent passages support this claim — David Theo Goldberg, John Solomos, A Companion to Racial and Ethnic Studies, 3325