I don't think it's a matter of willingness, but simple global geo economics.
There's places where producing A, whatever A is, is economically more efficient for countless reasons (energy prices, logistics, talent, bureaucracy, cost of labor, etc).
That's not gonna change with whatever investment you want or tariff you put.
But the thing I find more absurd, of all, is that I'd expect HN users to be aware that USA has thrived in the sector economy while offloading things that made more sense to be done elsewhere.
I'd expect HN users to understand that the very positive trade balances like Japan's, Italy's or Germany's run are meaningless and don't make your country richer.
Yet I'm surrounded by users ideologically rushing into some delusional autarchic dystopia of fixing american manufacturing for the sake of it.