It is very unlikely that all jobs would become automated and self driven. This sophisticated technology is required only when that complex orientation of Artificial Intelligence delivers automated analysis, cognition, and decision making based on several approaches, such as knowledge representation, multi-agent systems, planning, and machine learning, otherwise it doesn't pass the cost (vs) benefit
It is ethical in my opinion since this is done in parallel with life progress and this will not deprive humans from work, on the contrary this will make humans more:
Ethically, if the fruits of automation are exempt from work people. It is unethical if people who are relieved of work are excluded from the benefits of automation.
Unless we agree that societal regression is beneficial, there is no ethical dilemma with progress. (And I most certainly hope that humans will not again plunge this civilization into another millennium of darkness!)
At first glance, it is more a political and societal issues.
Indeed this "new revolution" destroyed more jobs than it has created, at least so far... Besides when you look at the created jobs, you can see that there is a big discrepancies between the 5 to 10% high skills /high paid jobs (the ones who design the software) and the others that are more or less "slaves of the 21st century".
I think the politics did not realize yet that is happening and probably something must be done in the future to help people that will not be able to find a job (I am aware that the point of view depends on whether you are coming from the so-call "european socialism" or from neo-capitalism).
However, there is an ethical issue, regarding AI in recruitement, face recognition or AI to quantify performances of employees. Simply because there are bias, probably "unconscious bias" of the engineers who design the software.
Very difficult topic for discussion. The word is evolution in all senses. That is what we all seek. If that is true then any science that leads to unenployment or other social problems has to be discouraged. In the case of Robotics and Automation many authors point that one has to displace human resources, not lay them off. If it is really a science, and they really are, one has to operate in a proper way. Human capital is priceless. Can anyone cost evaluate a human being? See for example a humanoid robot. I have talked to a humanoid robot. It costs US $ 18 million I was told in a science fair. You have to ask the list of questions and she answers in human emulated voice. So if a real human being is lot more versatile, than it should cost around US $ 100 million at least. Just to prove that capital human is preciless. So AI has its purpose as a science, but let´s not be nonsense thinking that we can be replaced by a machine that has so many limitations. I think jobs can be eliminated if they do not have proper technical level, as just manual and expensive operations. That reduces competition in the world market. It is also a matter of times: we are overwhelmed by what automated machines can do and we forget what man and machine can do together. We are not driven by money issues only. It takes a lot of effort to make evolution happen. We are what we think (Buda said that). If we think money only than we are going to have a decrease in the quality of our lifes.
In the history of human kind, new technologies have always emerged. This is the era of Robotics, AI and Automation, let the machines do what they are supposed to do and let the humans explore their true capabilities, its hard to say it is good or bad. It seems the automation and robotic technologies are now focusing more on co-existing and collaborating with human co workers which seems to be reasonable.
Economics and philosophy have been already dealing with this scenario, you may find something interesting in https://en.wikipedia.org/wiki/Post-scarcity_economy and references therein, above all Marx's Grundrisse. Also "Inventing the future postcapitalism and a world without work" by Nick Srnicek and Alex Williams. Regardless of how their answers sound convincing or not their questions are way so solid. The ultimate challenge is guaranteeing a certain quality of life to any human being.