Since no one is talking about it: T2 isn’t about machines taking over the world. That has happened (or will happen). But humans eventually defeat the machines. Skynet is trying to prevent that by killing John Connor. That’s what the movie is about. I suppose it’s also about John searching for a parental figure through the T800. He doesn’t get that through is foster parents and his estranged mother. Anyway, I don’t th…
What about all the stuff about destroying the lab and preventing skynet? Is that about father issues too?
The story is that Skynet is trying to defend its existence by killing John Connor. In order for John and crew to defend themselves against Skynet in the past, they prevent Skynet from ever existing. Skynet's folly was thinking that it could change the course of history to its benefit.
But this is also John and Sarah's folly. When we get to T3: Judgment Day is delayed, but it _does_ happen. They merely postponed the inevitable.