America predicts war with China in 2025 simulation

This plan is super unrealistic to invade a few countries all at once to post troops there? It would be more hard than to confrunt the naval forces directly and would atract more countries into conflict that are farther away from china and neutral. China's contendors in the area are Taiwan, Japan, Philipinnes and Korea. Why would China invade Vietnam, Malaesya, Indonesia as well? To add in another 3 countries to the list? that would mean china would fight against USA and the armies of another 7 countries plus Australia who certainly doesnt like this. Which is insane even for China. This plan is totally unrealistic and it wont happen like that no way it would be suicide. The most probable scenario is China will focus only on Taiwan for a quick win so that the rest of the countries wont react. After Taiwan China will focus on the next country which is Philipiness the weakest one, meanwhile avoiding Korea and Japan completely to not engage them and keep them neutral if possible.