Very few voters actually care to solve the issue. Home owners still far outweigh those who don't. Quite a few of the older generation bank on their property/properties to carry them through retirement. No one wants to see their house go under, even if they can realistically endure it without severe consequences. There's no incentive to increase interest rates, but banks obviously don't want to carry more risks, so individuals aren't getting the same mortgage-to-house price ratio as before.
"Figure it out" mentality. Even if there is a national or even global trend, responsibility to solve the issue is pushed onto the individual. Or worse, global mentality shifts to accept what is going on. "Yeah buying was normal back in the day, now you rent. Get over it."
Grandfathering and "empathy for the fortunate". Yes, I get it, you don't want your lucky uncle who worked a bad job for decades to lose his retirement. You don't want Mr. John in his McMansion on the other side of the road to lose his fortune. Almost no one wants to be the bad guy. Yet special ruling to keep the "haves" in their position continue to be placed at cost of the "have nots". No one wants to hurt anyone. As a result, the solution often seem to be continuing the same fruitless endeavor which changes nothing for the "have nots".
As mentioned before, population has yet to peak. Governments are still incentivizing people to come in or reproduce above replacement rate, despite it becoming evident we're just not capable of handling them. In theory we can handle way higher populations. In practice, there's no incentive to do so without severely punishing the working class further.
We're slowly normalizing a cyberpunk dystopia and most people seem okay with it. "At least you have iphones" is going to define gen Z and gen alpha at this point.