You could just read what China's been saying.
Xi's buildup of the PLA \ PLAN (military) has a milestone year: 2027
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China's navy (the PLAN) is already about the same size as the US', and should be significantly larger by 2030 (like 1/3 larger). What's more their navy is regional, our is spread throughout the world.
This is also why both control of the Panama Canal and the Red Sea (Houthi's) is an issue. The Red Sea is the way to transit the Mediterranean to the Pacific via the Suez Canal, while the Panama Canal serves the same purpose for fleets in the Atlantic.
If you choke these two corridors off, the US can't move its naval assets freely. This would give China a huge boost of having perhaps 3x or 4x as many ships in the region than the US and no way for the US to get reinforcements.
All these things are, conveniently, coming together for Xi's 2027 goal.
Also, I think you over-estimate what the west will do, or what it can do.
Chinas military modernisation is accelerating, with President Xi Jinpings anti-corruption purge reshaping the Peoples Liberation Army (PLA) as it readies for a potential invasion of Taiwan by 2027. A recent U.S. intelligence report highlights systemic corruption within the Chinese Communist...
economictimes.indiatimes.com