People not understanding the actual cost of owning and maintaining a house is my only argument for landlords. Or if you maintain it yourself it's a knowledge and time requirement.
Not saying landlords did a great job maintaining the rentals I've lived in. But there was definitely a point in my life where renting made more sense than owning a house.
We really need more control on rent prices so only high density housing is rentable. Or something, I don't have answers for why my shitty house is worth 70% more than it was 5 years ago.