But in reality there's more to it, right?

Yes, jobs are available, but they also get filled quickly. There's no shortage. The unemployed can out-bid each other in a "how-low-can-you-go" competition, but that just leads to working poor.

But isn't this idea that work is some kind of moral obligation to society exactly the problem if it's true that work is going to disappear? Do you think his contribution to society is zero or negative simply because he doesn't have a job? Perhaps it's just easier to measure if you have a job what your relative contribution to society is because you can place a dollar value on it.

I didn't downvote you, but I believe it didn't come across that way (it's hard to gauge what you tried to convey across the Internet sometimes).