Why? Almost everywhere a majority of people (and certainly the majority of voters) are already invested in housing and do not want their investment to loose value.
> Specifically, both house prices and interest need to go down heavily. Sadly, they used higher interest to try to lower prices, and that didn't really bring prices down.
People are more willing to spend an ever-growing share of their dual-incomes on housing, which drives housing prices modulo interest. So interest has no actual effect on housing affordability, since it doesn't influence how much people are willing to spend. If you lower interest, prices are simply going to rise such that people spend the same % of their income on housing. If you increase interest, prices will (eventually, slowly, since this is a seller-dominated market) fall to match.
> More supply isn't helping much either, as there is no diversity of supply, and builds aren't undercutting the market yet.
New builds will never be cheaper than existing housing stock. Low-cost new housing is a mirage; new housing is premium by construction.