Sounds like an authoritarian socialist government could fix this pretty quickly. Just take vacant housing away from its owners. Instead, everyone's calling for 'build more housing' as if impoverished people will be allowed to live there. Capitalism is doing to the people what it does to the natural world - chew them up for profit. https://medium.com/age-of-awareness/imagining-the-end-of-capitalism-7d205fb15b83