Landlords aren’t any worse than Chefs who are charging you to eat food, or farmers who won’t allow you to just go take want you want of their crops.

Chef provided the labour and knowledge in preparing your meal. Farmer provided labour and knowledge in growing the crops.
Landlord provided buying the property first then charging you for the privilege of living there because a piece of paper says it’s his.

The landlord did not build the house, and any maintenance costs come out of your rent to pay for someone else to fix.