Those workers can be better employed in building and repairing infra-structure, for which there is a current need, than empty houses, for which there is no current need. I have noted, in my own area, that there has been an upturn in such work. I believe that the local governments have quietly taken up the idea that this sort of employment is the best they can do at this time, given the structure of our economy.
Sometimes, I think you disagree with me merely for the sake of disagreeing. I believe I made the sort of suggestion you might well have made if I hadn't gotten there first.