They don’t provide housing, they provide a service.

Owning isn't a service.

They provided the capital for the construction workers, plumbers, electricians, etc.

No, the bank did that when they gave the landlord a mortgage.

Coordinating repairs and hiring out those jobs is also part of the service.

That's a property manager, not a landlord. Nine times out of ten, that property management is being handled by a low level worker, while the rich company owner owns everything and extracts the wealth for themselves.

Another problem is that a majority of rentals are owned by corporations that cartel to have ever increasing rental rates. Rent increases aren’t tied to anything except they can raise the price on a whim.

Exactly, they're leeches.