Yeah the "eugenics wars of the 1990's" in the "Space Seed" episode didn't come to pass, and have like the Soviet Union become obsolete future visions.
In the short story "Exile of the Aeons" by Arthur C. Clarke, he projects that India would surpass China and rule the world, and I thought when I read it that it kind of gelled with Khan in "Space Seed", even if India ruled the world in a few centuries, and not the 1990's as Khan's then-future envisioned.
India and China alone have about 40% of the world's population. And that's not even considering how many nationals of India and China live in foreign countries. Clearly China already has ambitions of empire, increasing their naval reach, and their economic dominion over Asia, Africa, South America, and even places like Greenland and the Bahamas.
