I'm sure china is rounding up its citizens and putting them into reeducation camps based on their ethnicity and religious beliefs for reasons other than ethnic cleansing.

Being left wing doesn't mean you absolutely must support china, especially since a lot of chinese policies are decidedly right wing and almost overwhelmingly authoritarian.

Like nost other "communist" parties in power before them, the CCP is populated mostly by self interested bourgeois that coopted the revolution and pursued a path of oppression against its own people.

Authoritarians gonna authoritate, who'd have guessed.