Earlier quoted context omitted.
"If we did it before, we can do it now" is not anything close to a valid argument.
Depends on what you mean by "we". China is doing it as we speak. Also, "it's been done before" is a much better argument than "we think we can make these massive and untested changes to our society because my studies say so" like I see constantly from solar/wind maximalists on demand response, mass v2g, hyper connected grid, underground hydrogen battery etc, etc.
China (and Russia) have lower labor costs. This doesn't transfer to the US, unless you intend we import cheap labor to do the construction.
And even in China, renewables are outpacing new nuclear construction.