I'm curious, what if rather then being centered on hate, Germany grew from 1933 under Hitler to a accepting nation of all peoples, doing something like giveing full rights to everyone, regardless of race or religion, how does this effect the world of that timeframe?
He wouldn't DoW others or get provocative. Remember, The Nazi Party was based on expanding Germany at the expense of others. If Hitler doesn't have those views anymore, he's probably going to pursue international co-operation, instead of launching a war against the world.
Obviously, there's no idea of Lebensraum at the expense of the Slavic peoples, and probably no desire to attack others. There certainly would be no idea of women sitting at home raising children as second class citizens, or required indoctrination in Education.
Frankly, this Germany strikes me as one that's likely to fare better than OTL--because it will essentially maintain much of the good things of the Weimar Era. There is no Reichstag Fire, no Enabling Act, no blaming Jews for the attack. Hitler probably stands for elections and wins, given that he'd have presided over an improvement in economic conditions.
I guess you'd be looking at a National Socialist party that turns out to be--surprise!--a bunch of moderates. Given their defanged attitudes, I think this leads to some kind of "German New Deal" and economic recovery, as well as Germany reasserting itself to the degree of not paying heavy reparations.
I would predict for Japan to get horribly bogged down in China but not expand the war, and eventually carve off another chunk and let Chiang hold onto the rest--which will probably not be a long term solution, but Japan simply gets war weary from a decades-long crisis in China, and the Army is eventually curbed after it has clearly pushed too far in China. Whether this kind of arrangment is permanent or limited is an excellent question.
Its the Soviet Union that's likely to roll snake eyes in this one. With no or only a minor German Rearmament to speak of, Stalin probably continues his purges and gulag labor projects. Its fun to speak of a Red Alert Scenario, but in reality, Stalin's destroyed the fabric of the Soviet State. Given the Great Terror, the Army Purges, the deliberate starvation of the Ukrainian people--and that there's no reason for it to stop--Stalin will simply destroy the idea of social liberation forever. With a war won against an enemy that is trying to kill his people, Stalin OTL could claim that the sacrifices he had ordered were worthwhile. But ITTL, it would be apparent to all that Stalin has killed 15% of his own people but left them no closer to the ideals that socialism was ever supposed to mean. Propaganda aside, the Soviet People now live in Secret Police hell far worse than the days of the Czar. With no other answer than the State is responsible for this suffering--the only recourse of the state is brute force. And anyone besides Stalin will have to deeply consider whether that's the right thing to do.