So, the "616" version of mainland China decided they wanted an in-house counterpart to SHIELD (which they also still seem to support to a limited extent via the UN) and built something called SPEAR. (Assuming that's the English version of whatever acronym they actually use in Chinese.) Just debuted in Avengers World this week.
You make it sound like a county holding 1/5th of the human population inside it's borders is not allowed to now and then speak for humanity or represent humanity...
China is not evil, a little dodgy with human rights, but not outright evil.
Not that you would know this from the look on Captain America's face on the last page of Avengers World.