See, to me, this vitriol is what seems super weird. It seems like you must be talking about some sort of property shark that owns 8+ figures in property and extracts the maximum possible from the poor peons that dare to want a roof over their heads. Maybe with some large company thrown in the mix for good measure.
My father and grandfather are both in rental (well, they did whatever they could to make their way, primarily carpentry; rental is only part of the picture). Both of them started with nothing and managed to bootstrap their way into some properties, fixing them up as they went. They do all the work on their respective properties themselves. There isn’t a management company involved. They aren’t some evil men trying to extort the populace, the goal is just to live, provide for family, etc. Yet by definition, they are landlords - that thing that so many here despise unilaterally with such passion.
Probably there is considerable diversity (or at least two classes of landlords). But laws are going to apply to both groups.