The Star Trek universe:
1) Earth nearly destroyed in a nuclear war caused by elitist eugenics-created globalists, who rule with drug crazed soldiers.
2) After these “supermen” leave, government is replaced by ruthless authoritarian judges with unlimited power.
3) Only when a single scientist innovates a new method of space travel, do benevolent aliens arrive to help clean up the mess left behind.
4) The end result is a one-world government that would fall apart without alien backing. Earthmen are used as soldiers in violent conflicts with alien species over a vast area of space.
Oh, hell yes. A lovely future.
there was never continuity after TOS.
in the original, wwiii did not happen and was avoided.
the Kahn stuff was limited to a region not the whole planet.
Next generation went poofy liberal with contradictions, voyager was a disaster and is mostly unwatchable.
The performance of the latest movies may need a re re re boot.