But we'd very likely also have a situation like in Orwell's 1984 and would be spied on and threatened by a system of satellites armed with nuclear missiles.
While I very much agree with the gist of the last 3 posts above, I would also like to point out that these developments were and are not restricted to Germany in the 40s. There are horrifying parallels in our time and in countries that we tend to consider as civilized. The scary and utterly frustrating thing is that the whole world looks away.
As for the German genocide: I was very astonished about these figures myself:
Number of people killed in WW2 (including civilians): 65 millions
Number of slaves imported by what is now the US: 29 millions (of which 4.6 million survived)
Number of people killed in WW1 (including civilians): 17 millions
Number of people killed in Viet Nam (including civilians): 4 Millions
Number of people killed in concentration camps: 1.1-1.5 millions
Pretty horrible list, isn't it?