They also challenge the sovereignty of Taiwan regularly - it was China who refused to allow two sovereign nations of Chinese origin when the UN switched the Chinese seat to the PRC.
Different countries different tools. The PRC has only really come into its element in the last 3 decades. The USA's foreign policy advocates-through-violence (CIA) don't have the best track record for success but they do have 80 years of experience. Give China time and I expect they'll start doing the same.
> Give China time and I expect they'll start doing the same.
Fair enough, but I hope the US and China incentivize each other to not impose their will on the rest of the world.
Is that a bad thing if we're trying to promulgate our values?