I'm sceptical. Recent movements in Germany point into the opposite direction or rather a continuation of wishful thinking. Yes, a lot of debt-funded defence investment is coming. They also promised some investment in "infrastructure". At the same time the debt increase will delay reforms that are overdue for 20 years and longer. There were already calls that, now, with all brakes off, we can increase rather than curb spending on the welfare state. As it currently looks, the productivity gap with the US and Asia will widen rather than shrink. A very disappointing development to say the least.
European manufacturing is more productive than US manufacturing. The US productivity advantage comes almost entirely from the US' strong tech (as in software) sector.
Tech (as in software) is what's being cut off to Ukraine, and tech (as in software, MEMS gyros, and GNSS) is how Ukraine keeps blowing up US$3M T-90 tanks with three or four US$500 FPV drones. So I think it's highly relevant to the question of sovereignty.
(Might be just me but it took a couple reads to understand you don't mean US tanks that cost thee million dollars. For me, USD is the currency code I'm familiar with)
Germany has slightly higher productivity per hour worked than the US. There's a productivity gap between the US and European economies as a whole (which is a relatively recent phenomenon dating back to around 2005), but Germany is quite productive.
One example is pensions. For demographic reasons the state pension system is underfunded for years, a situation that is projected to become worse. One solution would be to increase contributions which are already sky-high and make working or opening a business a lot less attractive in Germany. Another is to freeze pensions. Guess what happened? Germany's old government increased the contribution level starting in January this year [1]. Additional, a pension raise [2] has recently been announced and the newly-found debt will provide funding for additional benefits for pensioners [3]. It more and more feels like a gerontocracy.
