“slippery slope”
If the housing of building trade workers becomes 30% cheaper and more plentiful, the prices of building trade work might go down 30%.
If the housing of building trade workers becomes 40% cheaper and more plentiful, the prices of building trade work might go down 40%.
This isn’t the issue referenced, it was the “If this policy then we slip into this other policy”. On the other hand, the contacts between the parts around building and home ownership all going down are naturally coordinate.
And that’s not necessarily a bad thing, either. Cheaper homes due to increased supply due to fewer market constraints will make the homes more accessible. Folks invested in homes for more than their material value as a result of the constraints in the market will see a valuative downturn or correction.
But, that’s a symptom of the rigging of the market to start with, not unlike other speculative vehicles running out and people holding the bag on them (an inherent risk of speculation.) Effective extra-market protections around that speculative market to foster it are just aberrations which have added to the drive left in our political spectrum in this country by contrast.