So if I post something criticizing China's policies towards, say, Tiawan or the Uyghurs, I must include some criticism of a random terrible US policy or I'm a hypocrite? Do I need to also include a criticism of, say, Russia's policies towards the Ukraine or is it only the US?
This depends. When it is reported as a news or one simply wants to discuss details sure there is no need to bring other's wrongdoings.
But when it is used as at least partial propaganda (and it often does) in line of "look at good us and bad them" or comes from the government / affiliates then they better look in the mirror first. One thief has no standing criticizing the other. The fact that one had stolen $1000 and the other went for $2000 does not make much difference.
