Yeah, even with infinite Federal Reserve Notes, you can't just plop down heavy industry. Regarding China, when you confront Serious Foreign Policy Wonks(c)(R)(TM) about this, they'll say with a straight face that China will keep selling us steel while we're bombing Beijing.
Discussion
Germany still has heavy industry.
in my opinion America + Germany versus Russia + China is a close fight
but China will not enter the war ...
quite simply China has offered zero support to Russia in this war.
all China has done is give Putin reassurance that they will not side with NATO.