Once a job or task is automated, it can never be done by humans again. This is because within any market, the most competitive entity propagates and the others do not. The less competitive entities are starved of resources and stop existing. As AI approaches sentience, it will become the most competitive entity in more and more cases. When AI becomes comparable to humans, it will displace humans in every instance unless there is a conscious effort to subvert the market economy model and intentionally use less competitive options, otherwise known as abstaining from AI. However, some entities don’t care about a consensus to abstain and will use AI anyway. A country for example will always win against its adversaries if it uses AI. At the end of the day, AI will ratchet forward uncontrollably and the only entities left standing will be those who use AI. This is an inescapable and inherit characteristic of AI. Most AI experts concede to this, but wave their hands and say it’s a long way off.
The only way for humanity to continue is for AI to be banished. And by the way, this is all assuming that AI never maliciously targets human life on its own or otherwise for any reason whatsoever.