They should replace workers and people should deserve to live without being workers, but it should also be painfully obvious that our current economic system won’t support this idea, and won’t until we do some pretty drastic things.
It’s not that we couldn’t build a post-scarcity society probably even right now given some pretty radical adjustment of resource allocations, we just don’t want to build one – “we” being the 0.01% that have such insane amounts of wealth that they’ve essentially taken over the whole economic system, largely thanks to eg. dumb fucks like Reagan and sociopathic fucks like Thatcher and the people who idolize them buying into the idea that they too can be that rich because the wealth will somehow magically trickle down.