Sander's policies were far from economy destroying, they were classic New Deal Democrat policies that rebuilt America in the 1930s and put millions back to work building the dams, roadways, and infrastructure that keep our society running today. Then, at the tail end of 1941 we had spent the better part of a decade rebuilding our infrastructure and were ready to join in on WW2, so we used all these dams, roadways, etc to build the arms & the Liberty Ships to transport said arms.