This isn't an example of happenstance or an isolated actor in a vacuum upending "market forces". Private equity has been pumping hundreds of billions into markets across the nation to intentionally and artificially capture and inflate hard asset values.
Buildings don't move, and they're already expensive. Software that enables and enforces price fixing across markets might have exacerbated temporary inelasticity by local zoning, high reliance on import building materials, and restrictions on certain materials or construction, but the system wasn't built to handle a single company with $10T in assets buying up the nation, let alone an industry around it.
Blaming anyone with an economy smaller than a nation state just doesn't explain the scale and timing of the effects.
Why is this happening in communities in the rural South where there's plenty of room to grow? Who's buying up minority communities, inflating prices so that home owners can't afford the tax increases, and then buying those properties from under them and renting them back at a higher rate? It's not anyone you who they'll ever meet at a local town hall or whose home they can march up to to protest, that's for certain.