The paucity of near-future U.S. scifi is about the country becoming pessimistic, not being able to see the future clearly. There's a trend in U.S. scifi towards militarism and far-future stuff.
For a long time, we Chinese contained and pinned down the main forces of Japanese militarism in the China Theater, and annihilated more than 1.5 million Japanese troops,
Whatever fosters militarism makes for barbarism; whatever fosters peace makes for civilization.
...The greatest bulwark of capitalism is militarism.
the function of militarism is to kill. It cannot live except through murder.
Militarism consumes the strongest and most productive elements of each nation. Militarism swallows the largest part of the national revenue.
Nationalism, on my opinion, is nothing more than an idealistic rationalization for militarism and aggression.
I never intend to adjust myself to the madness of militarism.