I hope China will give us the materials we need for this!
You bring up a good point about China because nobody is talking about the real dirty secret that may be even worse than transmission lines - transformers.
We don’t even have the capacity to maintain our own grid without China much less beef it up and most neighborhoods mandated to “go green” will need new lines AND new transformers along with all of the other equipment that is mostly made in China.
China controls about 85% of the lithium-ion battery space (mining, refining, manufacturing, distribution) and we will need far more storage capacity to make this happen.
Too few understand the reality we face to implement all of this to deal with a “climate crisis”. The reality is that we are going to turn over our energy security, to include production (they make the solar panels and much of wind power too) to the CCP.