>There is no appetite for increasing supply anywhere in the West.

Every single person who currently is looking to rent or buy a house has appetite for increasing market supply.

None of those people have enough political power.

In Germany it is somewhere around 55% of the population.

In Germany lifelong renting is seen as a normal and acceptable thing to do, not a temporary stepping stone which will hinder you from achieving your life goals.

No it is not. A house is just totally impossible to finance with the average salary of two people, especially if you have children or a car.

In the US, it's a lot less than that.