Listen it is no hidden thing that japan and the U.S. may be at each others throats or nearly there anyways but if we stay neutral we risk letting the axis get even stronger and then when the britsh and soviets are gone who will they aim for, us, as we are there last big threat that is unless we join them. Its simple we stay neutral we die, we join the allies we die slowly, if, god forbid, we join the comintermn we die slowly, if we join the axis however we do not die we thrive. And there is no requierment if joinig the axis we have to kill non aryans, we have are own choices even if we join the axis and that is one of them, so the argument that we have to "exterimante" non aryans is futile as joing the axis only will have large affects on us outwardly not inwardly.