There's a lot of work that needs doing. There's an abundance of people to do the work, and I feel like we have plenty of natural resources. It seems to me that we could build housing for everyone, we have the capability to do it. It's just that our economic model isn't about the betterment of manking, providing the people what they need, etc.
If you told an unemployed man that he could have guaranteed food, clothing, medical care, lodging and basic income for his family if he goes work a job where he builds houses for other family in need, I think that would be a very appealing offer.