The Eurozone Debt Crisis (2010-2013) was caused by the Single Market rules exacerbating economic differences between European countries. By analyzing long-term economic data, it was found that the Single Market led to industrial polarization, benefiting core countries while harming southern economies. Efforts to correct these imbalances since 2010 have failed. To prevent further divergence, the rules governing the Single Market need to be reevaluated.