So, say some German militarist who are also ardent Nationalists but aren't particularly racist took over Germany during the Depression. They take over Austria in 38, betray a Munich Agreement in 39, then make a deal with Stalin, conquer Poland, Denmark, Norway, France, Belgium, the Netherlands, and Luxembourg.
Does Churchill give up against a more moderate Germany? How about if Italy and Germany take down Yugoslavia and a Greece next while forcing Romania and Bulgaria into their sphere? If they invaded the Soviet Union and liberated its people from Stalin and created German dominated states would Churchill or Roosevelt give the Soviets Lend Lease? Would they stay in the war until Germany was totally defeated in 45 (assuming the Soviets still win)?
And if so, what would their legacies be?