alt Hacker Newsjust makes the prices higher... you qualify for a house based on ratio of income to payment. so the demand is heavily influenced by the type of financing available..
Other than natural demand, Australia has a high real estate market due to the tax and a superannuation/pension distortions. Should try to fix those first. (probably impossible)
And as I pointed out in a sibling comment, it can lock you into your house if interest rates go up. We can’t afford to sell our house because the extra interest costs would increase our monthly payment by 50% even if the house cost the exact same as our current one.