Cammalu touched on this point earlier, but as I too am one of those "evil" landlords, here's a bit of the landlord's perspective.
I own three rental properties. I pay the mortgages, taxes, insurance and association dues for those properties. The rent does not cover these expenses. Now add repairs and upkeep on top of mortgage, taxes, insurance and association dues. Between the three properties, I have to come up with an extra thousand dollars a months above and beyond what the rent brings in just to cover my basic expenses. When the washer breaks down or the air conditioner needs repairs, I have to come up with even more.
When something does break, it gets fixed or replaced as soon as possible and I worry about how to pay for it later.
When a tenant moves out, more often than not, the repairs to get the place ready for a new tenant cost more than the security deposit, so that's more money I have to come up with, plus I now have to pay all the normal expenses entirely out of my own pocket. Even when a tenant has taken care of a rental (which is extremely rare), there are still expenses to get the unit ready for a new tenant. On these rare occasions, I'll refund the full security deposit and just eat the cleaning costs.
I've got tenants who earn more than I do, but I still end up subsidizing their housing. Over the course of the last fifteen years, subsidizing my tenants' housing has cost me almost the equivalent of two years wages.
And no, I can't just raise the rent to cover my costs. If I did that my rents would be well above average rents for the areas my rentals are in and I would be unable to rent them at all.
How do I come up with the money to pay for all of this? I work full time or more. I very rarely eat out. I look for what's on sale when I do my grocery shopping. I try to keep my per-meal cost to a dollar or less. I almost never go to see movies. I don't use any pay streaming services. I keep my vehicles until they cost more to repair than to replace. I have burned through my savings on more than one occasion trying to keep my rentals afloat. There have been times when I had to borrow money to pay my mortgages. A year ago, while I was furloughed from my job, I had to move back into my mother's house and rent out the condo I was living in because I didn't have enough money coming in to pay for my own living expenses, never mind trying to cover the shortfall in the rent.
So with all these costs, why don't I just walk away?
Because owning these rental properties is not about today. It's about tomorrow. Eventually, they will be paid off and the rental income will help to pay for my retirement. I work in a field that requires me to be physically capable in order to do my job. With the injuries I've picked up over the years, there's a very real possibility that I may not be able to continue working until 68. I'm not going to get rich off of my rentals by any stretch of the imagination. At best I'll be able to maintain a lower middle class income.
It can be a bit of struggle holding on to my rentals, but I struggle now so that I don't have to later.