What if the Holocaust had not happened and Jews populated and moved to other countries?

Why do you ask? There are Jews living all over the world.

You are unclear about the concept of religion in this world.

Well the holocaust was a part of WW2 as a connection, Hitlers main goal was world control and taking out Jews was part of it. If you are asking if WW2 never happened or just the holocaust. If the holocaust never happened then Jews would be fine I suppose. Most Americans didn't believe the images coming back from the Camps in the Western Hemisphere during WW2 so it prob would lessen the vitality of American engagement. However, Japan would still attack since it got the bitter end of the Treaty of Versailles from WW1 as did Germany. If WW2 never happened then most likely WW1 wouldn't have either, or the Agreements after WW1 would have been better for both Japan and Germany besides leaving them in the dust.