They're part of the Tankie Triad, Tankies are authoritarian "communists" so basically they'll deny any wrong doing of countries like China, Russia, NK etc even when those events are long decades established events like tiananmen square.
It's kind of crazy how many tankie apologists there are in the other post on !196@iemmy.blahaj.zone. Really hope that people like that aren't welcome in this one.