A war with China won't be won with manufacturing. It'll be won by having allies.
If it actually comes to pass, you'll probably declined fighting the hot war, and opt for a cold one. But without allies it'll get real cold.
Canada could have been an ally too ... now it mostly hates USA.
What Europe doesn't is the ability to quickly agree on anything. But when America calls consensus can be reached quickly.
At times 40% of the contingent in Afghanistan were allies.
Does America or Europe have the industrial capacity to produce enough ships to stop China from taking Taiwan?
A war with China won't be won with manufacturing. It'll be won by having allies.
If it actually comes to pass, you'll probably declined fighting the hot war, and opt for a cold one. But without allies it'll get real cold.