The U.S. has explicitly suppressed plenty of other governments before, both for ideological and economic reasons. Read about Salvatore Allende, who was elected via a democratic process in 1970s Chile on a socialist reform platform and then was subsequently overthrown and killed, via suicide after being surrounded, with heavy involvement via the U.S. CIA.

China has not typically gone beyond their own historical borders, and when they have, it is miniscule compared to how the U.S. has.