The Americas are the big answer here. They held other holdings in other places as well.
Answer:
In addition to six million Jews, more than five million non-Jews were killed under the Nazi regime. Among them were Gypsies, Jehovah's Witnesses, homo, blacks, the physically and mentally disabled, political opponents of the Nazis, including Communists and Social Democrats, dissenting clergy, resistance fighters, prisoners of war, Slave people
After WWI, the Allies made Germany sign the Treaty of Versailles, it was really harsh towards Germany, its destroyed it's economy, its army, and blamed the war on them.
Many Germans, suffering in these conditions, saw Hitler's party as a light, as hope for a better life for them an and their children, because Hitler wanted to restore Germany's glory, and with it, it's economy.
They felt betrayed by everyone, but Hitler was always on their side.
