The point I think a few are trying to make is that the censorship in China issue is completely unrelated and irrelevant with respect to the monopoly issue.
You want to break them up with anti-trust because they're a monopoly? Sure. Go ahead and investigate and figure that out.
You want to ... punish/regulate/? them because they do business in China? You may not like it, but I don't see under what regulation or law you can do that?
The best analogy is US companies that contract with sweatshops. There's actually not a lot I'm aware of that can be done in the US court system, outside of utilizing trade treaties that require adherence to certain labor regulations.
