I do think this may pose a threat to workers. Historically, as technology has improved, the skill level needed to be productive in the economy has slowly increased. (e.g. needing to be able to operate a computer for office jobs) This hasn't previously been a problem, but if in the future one does have to be knowledgeable in complicated automated systems in order to not be replaceable by a machine, this may eventually lead to lots of unemployment. It probably won't happen any time soon, however, as AI and automation still have a long way to go before being absolutely better than a human, but it is definitely a possibility. However, this automation will also end up dramatically bringing prices down and making the world more efficient, meaning that people will still have access to basic services and necessities.