So of course, making it worse won't hurt! And the countries who couldn't sell into our economy anymore. What do you think they were doing in the 30s? Japan had no natural resources, only trade. Smoot blew a hole in the Jap economy. Jesus Christ, do you think WWII just materialized out of thin air?
That is complete BS, Japan was not dependent upon export to the United States prior to WWII. If anything they were dependent upon US exports to them.