Well, there's always a treatment if you have money to pay for it. And if you don't you still have options like various charities, crowdfunding, etc. That's still a better scenario than the court ruling that the best thing for you is to die.
Well then they have that option in addition to state healthcare, so what on earth are you talking about?
GoFundMe as a form of accessing healthcare isn't great.
Private healthcare is available in the UK (or in this case in Canada). It appears that she is being actively prevented from using it.