Skynet implies intelligence and motive. I tend to think it's more likely they'll simply be programmed to do what they need to do to replace workers. You don't need self-aware robots to replace the human workforce and thus put untold numbers out of work.
And when you see someone post "natural selection" as the response to where are these people going to get jobs when the jobs all disappear you start to understand why the predicament exists in the first place. Beyond certain religious types, most people don't believe in a utopian-like society where people come first and basic needs are always met (like in Star Trek). No, they believe in ME ME ME, which in turn means collecting ungodly amounts of money, property and power (e.g. Steve Jobs is a good example), so much so that they could never possibly spend it in one lifetime or even many lifetimes, yet they hoard all that money (even company-wise), don't use any of it to better the community or the country they live (quite the contrary, they move the jobs OUT of the country, when the profit margins clearly show they could easily have kept in the country and STILL made ungodly amounts of money) and just keep pushing until people are committing suicide and what not.
The point is that greed and self-centered behavior lead to "I don't care" attitudes towards others and "so long as I got mine" actions. This in turn only widens the gap between the have and have-nots and few children growing up dirt poor are going to have opportunities to get out of that situation since the support and education just isn't going to be there. Too bad right? Natural selection. Let the children starve. Let the poor die. Create robots to do their jobs and live it up until the population dwindles and a natural plague eventually wipes humanity out and all that's left are the robots doing their thing. It'd make a good movie, at least.
You can forget about Star Trek and the like. Society will never go there. We are far too spiritually bankrupt to ever create such a world. Even if we had cold fusion and unlimited cheap energy, it wouldn't matter. The few would still lord it over the many and then they'd try to take over the world (seems to be a common theme throughout history from Alexander The Great to Napoleon to Adolph Hiter, someone always wants to rule the entire world with an iron fist. Democracy doesn't really work either. Just look how corrupt it becomes over time. The same thing happened in Rome. History repeats itself again and again. People never learn. They never grow. The setting and technology changes, but people are just the same.
That explains why so many of them are still living with their parents. They don't want to take a low or even mid paying job. They hold out for that dream job and live in the basement. Kids today are spoiled rotten.
