If history is any indicator, it will take one and a half generations of relative stability and everyone that matters will have forgotten. Probably there will be lingering, mostly misplaced bigotry (especially if there is nothing in the way of reparations) but there's too much potential in the resources (markets, raw materials, laborers, tourism, etc) here to stay sidelined for long. Look at Germany, the UK, China, Japan, Italy, or Belgium. Colonialism, screwing allies, even outright genocide is papered over as soon as the populace blinks to keep things moving.

Or there's the Bad Ending where far-right movements control more of the world and we're a successful part of the new Axis powers.