I ask sincerely, have you ever had a bad landlord? Because if you had, you would understand why some people would hate them. Many people do not have the choice to buy a home and so must rent, and often they have to deal with terrible people.
So they would rather be homeless? In a market without landlords, everyone who couldn’t afford to buy a home would have to live in their car or camp on the street.
In a market without landlords, especially corporate landlords, more people would be able to afford to buy a home.
I think that what most people want isn't a market without landlords, but a market without abusive landlords.