The Chinese State's actions w.r.t. the Uyghurs in undoubtedly a genocide. The Tankie angle misleading, "Han supremacist" would be more accurate.
Calling anyone supporting Franco a 'tankie' is so ahistorical it beggers belief.
Please try to understand the words you use, lest you rob them of all meaning.
I'd suggest replacing 'tankie' with 'partisan'.
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I used it as a synonym for "Westerner (or West resident) supporting authoritarian regimes (of all colors)"