[aninhumer]

>the question is, as always, what to do about unproductive assets.

If we consider the goal of society to be increasing overall utility, then someone enjoying their free time is not unproductive because they are producing utility (for themselves). There may be more productive things they could be doing, but we shouldn't ignore that baseline. If the work offered by a Job Guarantee scheme is not producing as much utility for society, then it would be more efficient to just give them the money.