Except that Germany was not the SOLE customer base of Europe in the aftermath. FAR FROM IT. By any measure there is no realistic comparison between post WWI Germany and the current US consumer market and status -——Fail...
I am quoting from statements from the historical record made by politicians at the time - prior to WWI !
They and many others were convinced that a continental European war was impossible because of interconnected trade. I think England was one of Germany's largest if not the largest trading partner.
My ‘rule-of-thumb’ when everyone particularly the “opinion makers” are convinced something won't happen, look for it to happen !
Smug certainty is always an undoing !