You might be right on some issues/ but on most you are absolutely wrong.

First, gold is an illusionary value that has nothing to do with economy. It does not represent the actual value of products being produced and it can impossibly grow parallel to an economy. Bad idea.

Second, there is an international setlement bank in Basel, Europe. That setles countries balances.

Third, to force anyone with savings to invest these in perhaps risky enterprises is a dictatorial, non democratic proposal. Extremely bad idea.

Fourth, America did finance rebuilding Europe by the Marshall plan.

Fifth, to create an international currency based on non existent economies at the time, would have been the same mistake Europe made in creating the euro, that caused an enormous financial crisis ten years later when debt of many countries went through the roof. Bad idea.

That the current economical and social unbalances have not been foreseen; that need a different financial system; you are, without mentioning it but lets say indirectly might be refering to it, right about.