Why does the United States like to meddle in other people’s affairs?

Historically speaking, in World War II, the United States won the Pacific War and deployed troops to more than 50 countries and regions around the world. After the end of the Cold War, the United States eventually became the world's superpower. Great powers have also become de facto world hegemons. For these historical suggestions, read "The Rise of Great Powers".

The rise of third world countries will inevitably affect their own interests. This is something they do not want to see, so they will meddle in their own affairs.

Now the United States is taking advantage of the hegemony ambitions of several small countries around China (for example, Vietnam and Myanmar always think they are the number one in Asia.) and the fear of a rising China, provoking everywhere and trying to Delay China's development and even provoke local wars. This is used to hinder China's development and stabilize its position.