Earlier quoted context omitted.
You've pointed out what the US is doing. That's good, but you're clearly biased, so let me tell you two things that China is doing that is contributing for that instability you've mentioned: claims in the south china sea that no country would accept if it was done to them and a major naval build up. You need two to tango and both the US and China are dancing right now. Anyone only blaming one side need to stop for a…
Take a look at a map of US bases around China and then try to find any Chinese bases near the US, and you’ll understand who’s “militarist” and who isn’t.
From the list I can see on Wikipedia, all of the nearby bases are in Korea and Japan.
More useful might be a map of US forces near China, not caring about who owns the base. And some comparable maps from the last 50 years to see how it's changed over time.