i think you mean investor will ever build housing again. Regular people still want nice houses, so we will be back to craft houses built by individuals wishing to express themselves into the abode they live in. To fill the gaps grants can be issues to aid construction for those less well off
It was called the “tea party”, any new movement within the democratic party will need to differentiate itself in name to make significant headway, so we will probably get a “new party” just as a division in the old one expressed through the primary system (assuming our democracy makes it that far)