FriedRiceNSpice said:
I wasn't referring to GDP. Going by GDP, China would only have a 1.3-1.4x advantage.
But you mentioned GDP in the very first part of your post? Slightly confused about that.
FriedRiceNSpice said:
I was citing manufacturing value add, for which China makes up around 32% of global output - while US makes up 15% and the G7 combined just under 30%.
Indeed, manufacturing value. But that's where the example of multiple Chinese steel foundries potentially bringing in less revenue than a small Rolls-Royce factory comes into play. Manufacturing value doesn't necessarily mean the US has even close to that percentage of factories relative to China or the rest of the world, it just means that the financial value of their factories' production is at that level. But the US, like Rolls-Royce, or Louis Vuitton, inflates prices, has consumers willing to pay much more for their products, and deals with much smaller products and less materials. These types of factories do not tip the scales that much in terms of raw military power and capacity.
FriedRiceNSpice said:
While no doubt steel is important in war, steel is unlikely to be the bottleneck for military production. WW2 era militaries were much more steel intensive than modern militaries, yet like you mentioned, nations in WW2 produced far less steel than China does today.
Steel was always important for war. And of course, even though the US will still be able to produce enough for itself, China will still be able to pump out 10x more, which is always an advantage. Anything you have more than your opponent is often an advantage. Not always, but usually.
FriedRiceNSpice said:
With regards to land size, that is yet another disadvantage Japan had in WW2 that the US would not have today, as China and the US are roughly equal in land size.
Yes, China and the US are roughly equally matched in terms of square mileage, but if Japan with it's meager land size was such a difficult adversary for the US, an opponent of similar land size and resources would only further hurt the US' ability to counter any move or attack, putting it at an even greater disadvantage.