They all disgust me. It's a vile business operated by vile people, in the main.
Let's say you're right that it's a vile business operated by vile people, in the main. Isn't it rather unfair to say that they all disgust you?
OP inherited her house, presumably when parents or other close relatives died, and doesn't give any impression of being prejudiced or unfair. I'm guessing that if you inherited a house, you wouldn't sell it and give all the money to charity?
I was a LL for a few years. As a teacher in a poor area of the country, I'd been able to afford to buy a property - something which would have been impossible for me in my native South-East.
When my beloved mother developed a terrible disease, I gave up my job and moved back to my childhood home to care for her. I let out my property at a very reasonable rent, and used the rent in excess of mortgage payments for property improvements. I made zero profit overall, because house prices in this particular area fell, so I eventually sold it for the same price I bought it at, in spite of improvements.
Does OP disgust you? Is she actually in any way at fault?
Do I disgust you? Presumably if I do, then you're confident that in the same situation you'd not only give up career and home and move hundreds of miles to care, unpaid, for a relative, but you'd also sell your home, giving up any chance of returning?
It's very hard facing poverty and discrimination. I've been there, although I'm in a different situation now. But hating everyone, good or bad, is hardly a reasonable answer.