It's this. Wall Street won't allow american companies to make long term decisions and long term planning that cost money in the short term, because they want all that money immediately now. Like, right now now. If an executive promised they could deliver big profits in 5 years by spending the next two investing their profits, Wall Street would fire them and put in someone who will happily spend all the profit (plus debt) to do stock buybacks and dividend disbursals.

It's even worse, the entire ideology is that industrial policy can't, by definition, be better than what the market would decide without interference. So every kind of actual strategic decision making (i.e. investing a few hundred billions in the industries of importance for the next decade(s), or at least in the infrastructure supporting it) would actually make matters worse. That is essentially what neoliberalism is all about.

This is core reason why the German industry became so irrelevant in the last 2 decades: The rail infrastructure became pseudo privatized and now is in shambles (IIRC only about 60% of trains arrive on time). The PV industry was axed by the conservatives about 15 years ago and now is completely dominated by China. Even now, as the other EU countries demand strategic investments - and again the German conservatives say this ought to happen without any new debt. "We can only spend what we have", to quote Merz. Imagine China saying this about chip production, or even Sam Altman about compute hardware...