Q: Can the US attack China and overthrow the Chinese government?
A:
It is impossible. New China has grown from anti-imperialism wars. One cannot use seawater to drown seaweeds as seaweeds are grown in the sea.
Because Western powers attacked China repeatedly since 1840, the Communist Party of China emerged in 1921 and established the Red China in 1949. Red China exists because of the attacks from Western powers. How can another attack from an imperialist power overthrow such a government?
As a Mexican proverb says, you try to bury me but forget I am a seed. The Red China had grown up from a seed that imperialist invasions were the soil and water.