You are the one that is snowed. Just look at the computer chip shortage and what it's done to manufacturing here. The majority of those chips are made in China Taiwan and Japan China could stop supply of 90% of them to the US. And just how long would it take mexico to gear up to replace Chinese manufacturing.
Yes, China controls the ports at each end of the canal and much of the infrastructure that keeps the canal operational. Control the ports and you control the canal.
Key Decision Point Coming for the Panama Canal