We actually had more debt at the end of WW2 than we have today...it was around 120% of GDP. But we do have an economy with one hand tied behind it’s back with our insane tax code, epa regs, etc. Hold the line on spending, break the medical monopolies, cut regs, swap out the payroll tax for an import tax and we could turn this around pretty fast.
We also were the only industrialized nation in the world that wasn’t bombed to smithereens, and were able to switch back to manufacturing consumer goods in short order. That, and the Bretton Woods agreement launched the post-war recovery period, or as I fondly recall it: my childhood years.