Don't take the CPC'ers who have abandoned their own civilisation (borrowed from India in large part in first place) heritage for cpl generations now (and thus living in the span of "now" and short-sighted materialism) too seriously.
Look at them making some parallel with those before them that did what they did in Nanking....all because it suits a a narrative and ego. Narrative and ego is after all what stopped China from having a much larger population now (along with forced baby-murder that was in the vogue after)....because they let a psycho steal and export grain from them when they were starving, running a death toll in the dozens of millions back then.
They know next to nothing about actual basic analysis of history when it comes to this subject:
https://www.rug.nl/ggdc/historicaldevelopment/maddison/