But if landlords make too little money, then there will be fewer landlords and more owner-occupied buildings. There will be less construction of rental properties. In the long term, economic theory predicts that such a supply shortage would increase rents, pricing out the poorest from being able to afford to live in that area.
I am not arguing that we need landlords to make more money. But until leftists overthrow our current capitalist system, we do need to incentivize capital owners to invest in rental properties to increase the supply of rental properties (which should decrease the cost with all else equal). (That last sentence is positive and not normative.)
Yes, shortages increase rents. Solution to that: allow people to develop. The fact that houses cost so much more than their construction cost is due to the fact that the government bans owners from building as many units as they want. Thus houses get artifically high prices in attractive areas because developers aren't allowed to meet the demand.
I am not arguing that we need landlords to make more money. But until leftists overthrow our current capitalist system, we do need to incentivize capital owners to invest in rental properties to increase the supply of rental properties (which should decrease the cost with all else equal). (That last sentence is positive and not normative.)