She is literally being brainwashed and I don’t use that term lightly. If you challenge the points her upline (I prefer upslime) makes, she will say you’re “negative” and break off contact, as they’ve been taught to do.
It’s worse than a drug because when one stops taking a drug, the effects can wear off faster than brainwashing.
Unfortunately, yes, this is something that many people have to go through and get beaten up and broke or in debt before they can’t go on.
Generally the upline tries to keep them in as long as they spend money on tools and once they can’t keep up with that, they get dropped like a hot stone
You can do best with questions. Others will say more and I have to get going so I don’t have much time, but I did want to give you a response as soon as possible so you know we are here and we want to help. For now, I’ll mention that asking questions that make her think and doubt will help, but they’ve also been taught double-think so they can say one thing, then something contradictory and not realize there is a problem with the two statements contradicting each other.
I will caution you that the worst thing you can do is directly confront her over it or tell her that it’s a scam. If you do, her upline will push her to shut you out so you can’t contaminate her thinking.