Steve's Barking; A I The end of economics as we know it

If those who claim that artificial intelligence will take over all the mundane task, the claims should be     the end of economics as we know it is over.
We will not need workers to drive trucks, cabs, or buses. How many millions of humans will not have a pay check. Nor if you believe that machines will cook, serve and take our money, oh my, those  jobs will be done without some one collecting a pay check.
If you believe the futurologists machines will build themselves. Oh I almost forgot we will no longer need any human to do farm work. Another industry that will no longer need us.
Doctors will no longer be needed for diagnosis, another human job taken away by machine. Some futurologist even suggests nurses will be come obsolete.
What about programmers, why it's been suggested that machines will program themselves. Another job people don't get paid. 
So all that's said and done, no gets paid, no human has a job, and we cease to exist, for without work and a pay check we become the most useless of species.

Am I worried? Well everything that I've ever touched that has some sort of electronic component has broken down. Has a short, has some glitches, so if go by me, complete Artificial Intelligence will not come to me.