Why should I stick to the opposite side

[yjdlbcj]

https://timesofindia.indiatimes.com...luence-in-south-asia/articleshow/63395543.cms
As the two most populous country, why do you have to be an opponent to each other?
The world is so big that all two big countries can have space.
China has not deliberately expanded its influence,
Only because the state is strong, it is bound to play a more important role in the world.
For example, the United States