If we just take Hitler out of the equation, we gain probably 40 million lives that were snuffed out. If we take Lenin out of the equation, we gain perhaps an additional 100 million lives.
By what argument could you suggest we could have killed more people if history had gone differently?
I believe that things work the way that God wants them to work because He is in control. Perhaps if Germany won, Hitler never would have come to power. In fact the conditions after the war and the enormous reparations that Germany had to pay created the need for Hitler in the minds of the Volk. If not Hitler, perhaps someone else. Maybe if the Germans won, they would have gotten Nukes first, and the whole world would be speaking German. Who knows? As a student of history I have surmised that anything that happens always has a thousand different events that must occur. There are no accidents, in my opinion.