I have seen so many Chinese projects fail/collapse that I am wary of the efficiency and longevity of any major Chinese infrastructure.
The Chinese know/agree = look at tofu-dreg on youtube.
It refers to structures so weak they seem to be made from bean curds...
The flipside of this is that if anything fails, they'll just rebuild it. Their capacity to build things is incredible -- and yes, also a little scary. I understand why some people might want to pretend it "isn't real."
At a certain point it's just cope. If we take it as an axiom that America is #1, and then we see another country seeming build better, then it's logical to deduce that it's all veneer.
People like you said the exact same thing a few years ago about Chinese EVs.
And they were proven right as EV companies went bankrupt or required government money to prop them up.