Lol. You can call me judgmental if you like, but I'm not the one starting threads about a person who shares their home with me. That said, I have no problem judging people when it needs to be done. You solicited opinions on your situation and I gave mine.
The way in which you impute no good to her and no failings to yourself in a tense relationship raises an immediate red flag. That is what I meant when I said you seemed judgmental and self-righteous. You take note of everything you do right and everything she does wrong. Once you get that mindset, confirmation bias is just a bitch.
You'll also note I am open to the idea you might be right. Some people are just lazy, and it is a harder vice to forgive than vanity, pride, or greed. Still, a little mercy could go a long way. Cut the girl some slack. Even if she is a total loser like you make her out to be, dwelling on it isn't helping anything. Clean the house and enjoy living with your brother.