The first two are sweeping generalizations that are like that simply not true and only serve to attack the work of the moderators. If you want to critizise something you need concrete examples.
Ironically, the moderators created those examples themselves by removing those comments.
The last one… the historical accuracy is debatable, but was it even posted on a thread that discussed pre-ww2 history?
It was not, but as you know, the lemmy.ml moderation discussion always brings up political questions.
Usually such cut&paste comments are made to derail justified complaints regarding ML propaganda about recent events.
Indeed. The fact that lemmy.ml bans people about mentioning Tienanmen is still crazy. But that should probably not be a justification for lemmy.world moderators to remove any debatable historical thesis and ban users for that, especially on a community dedicated to the fediverse.