Fantasy And Reality.
A country that monopolized space travel might put missiles in orbit or on the Moon. What might happen if demons were both real and active?
"Demons with a lunar stronghold, striking out of it with tricks, temptations, lies, illusions, disruptions, despair, to set man against man..."
-Poul Anderson, Operation Luna (New York, 2000), p. 265.
Steve Matuchek imagines two scenarios that we recognize. In his timeline, Jews were persecuted right up to the nineteenth century and it could happen again:
if a modern country lost a major war and unleashed its resentment on the rest of the world, starting with the Jews;
if a big but backward country was captured by an ideology that claimed human nature could be changed with secret police, concentration camps and mass slaughters.
(I believe that human nature can be changed but not with secret police etc.)
Earlier, Steve and his brother-in-law had imagined our twentieth century in even greater detail. See here.
As Poul Anderson and I have said (see here), fiction reflects reality.