A mean not to go too deep into whataboutism… but at least they only persecute their own Muslims rather than picking random countries on a map and persecuting them.
I see your point but, they're really not selling much more than golf carts and drones. If they go all-out with selling their actual military hardware (which they have a large stockpile and production capacity of), it would be get much more difficult for Ukraine to keep up the balance without increasing support from the west.
It's really quite interesting to see China being labelled as imperialist mean while the western powers have been colonizing and meddling in all kinds of affairs for generations... (see Operation Northwoods as one example)
The entire point of being able to mention past mistakes is for future generations to be able to learn from them and avoid making the same mistakes. It seems, in recent times, that while this liberty is "afforded" to US/Europe, they're not able to use it effectively, if at all. Meanwhile, even though the Chinese might not be able to talk about their mistakes publicly, it seems evident from their progress and events that they have not forgotten them, and that it is in their minds, at the very least.
Edit: Not to mention, looking at how your current president is going after Canada just because of an ad, don't keep your hopes up on US citizens being able to "mention" things either.