I'm sure that the people of Tibet at the very least would feel strongly about the notion of a peaceful, non-expansionist China. You could ask the people of the Philippines as well, or for an admittedly more complicated answer the people of Japan and the RoK.

China is also happily supporting Russia in their invasion of Ukraine, which makes the "not waging war" distinction a bit academic.

I never said they were peaceful and non-expansionist, just that it's unlikely they'd turn to war for those gains.

They also have fought wars, and my wording was admittedly bad. They haven't fought a serious war in a long time, and their military activity in general has been limited to a few border standoffs which I certainly wouldn't take as an indication of its willingness to fight for something like expansion