To end China you need to bleed it's economy.
The largest comercial partner of China is Brazil. Corrption is ranpant all over Brazil, along with a large (but still minority) part of the population that is openly marxist, and this year the huelander are trying to change things with the election of a conservative military man for presidency. One of his promises are to cut most ties with China.
Seize that opportunity. Get more information about Brazil's overall situation, and contact Right wingers from Brazil to exchange information abot China's corruption. Any blow to China's reputation OR embarrasment for China's government that comes from huelanders exposing their corruption will contribute to speed up the demise of China's trade with Brazil.
Destroy brazillian partnership with China, and you will destroy China's largest market. Even if it costs Brazil itself, it is worth it.