Your point about "fraud" is just a nitpick over a moral vs. legal definition of the term, and it too isn't helping anyone live a happy life.
Get. Insurance.
She received care, without insurance, for heart failure(including oxygen concentrator and tanks), a pulmonary embolism, and back pains(among other things which I can't fully recall and am actively trying to forget).
I'm not saying it happens to everyone, but it does happen.
which is to say, preventative and maintenance care are important, and i don't see any of that in what you described. parent's talking about emergency care. you're describing emergency care.
I'll also say that people like her are why preventative care isn't always what it's cracked up to be. There are plenty of people like her with conditions like diabetes(which she also developed due to her sedentary lifestyle and poor eating habits) who willfully disregard their doctors' attempts at moderating their behaviors.
That is literally the opposite of what "preventative care" means.
Everything is emergency care, if you wait long enough.
This is a harmful myth. It's possible to get emergency care under pretty much any conditions. Everything else isn't available.
You can use this trick if you got hit by a truck or had a big infection. It doesn't work to get a hip replacement, or chemo, or post-stroke occupational therapy, or a prosthetic, or a pacemaker, or...
That stuff requires insurance. You need to stop telling your friends that fraud is the answer and start telling them to sign up for care.