i know lily's perspective is that she's an abuse victim speaking on abuse, and i won't fight her on that.
but much in the same way that gay people can be homophobic, abuse victims can spout abuse rhetoric. it's almost par for the course if you don't course correct.
so, just, for my own peace of mind here, let me reassure anyone reading:
lily is wrong about abuse. on every level, in the worst possible ways, she is wrong. the only thing she got right in that, is that her behavior is cruel.
she is a cruel, toxic person, and justifying it with victim blaming nonsense. that's all that is. her flimsy rationalization for her own sake.
abuse, particularly long term abuse, changes you. i didn't want to get too personal on here, but i will say that i've been in multiple abusive relationships of many kinds. one in particular was ... extreme. it lasted several years, and involved a lot of violent nonconsent.
having that done to you, and being made to feel it was justified ... messes with your head. you don't think you could ever get to that point, but then it happens, and you're in it, and it all makes sense.
that's why abuse is so dangerous, particularly emotional abuse. most abuse victims will tell you: it's a process. things that aren't normal get made normal bit by bit, day by day, in jokes and casual talk and simple minutia. you're slowly broken down and reshaped into someone different, locked into a permanent mental space you can't shake off without help - and then you're cut off from help, often by being taught you don't deserve it, or there's nothing to help in the first place.
the point of abuse is to make you feel small and helpless and out of control, so the abuser can feel the opposite of those things. very often, your own mind won't be the only leverage they have over you, either.
"just cut off your absuive parent" is all well and good, until you have siblings and pets you can't take with you, or you depend on them for financial and medical support.
"just get a different job" is fantastic, until basically anything to do with current capitalism ever kicks in, particularly if your boss is influential in your field.
"just leave them" is fine and dandy, until you have kids, shared bank accounts, legal documents tied up in each others' names that they can use to get the police after you - anything at all that's the result of tangibly linking your life to another person. a smart abuser will get as much of that kind of leverage as soon as they can.
if you want to put your own life first and survive, no one can fault you for that. but you equally cannot fault people who believe the best thing they can do is stay, even if they're wrong. so, so often, they're saying that because A) they've been beaten into believing it, B), they have people relying on them to keep the status quo, or C) they have access to a resource in that situation that they will lose if they leave it.
we help those people. not spit on them. if you can't help them yourself, then the least you can do is not cause any more damage.
lily is failing on the latter.