Yeah, racist or not, I can't see the entire world being able to unite and defeat the United States. The RN would have to outproduce the USN and constantly fight it, while keeping the rest of the Empire manned and policed, which if the OSS has any teeth at all, it will be encouraging rebellion at every turn to make life that much harder. . Germany would be giddy at the fact that England is having to divert so much to fight the US. The Empire was already in decline by WW2 OTL, so fighting a much bigger nation, with Germany staying around as a viable threat, would just make matters worse.
Cutting ones losses might not be such a bad idea.
Cutting ones losses might not be such a bad idea.