Everyone deserves care. It’s unpleasant to think about giving emergency care to people who actively refuse preventative treatments at the cost of canceled appointments and surgeries for non-COVID patients. Triaging really sucks.
They're getting it. Everyone is offered the vaccine. If people choose not to accept that care then what happens afterwards has to be assessed and prioritized on a case by case basis. If there's an ICU bed and two patients, one who's a Covid patient who refused to protect themselves and the other someone who has something not preventable, the second one should get priority.
Ideally there would be two beds, and everyone would get the care they need, but reality means choices have to be made. Refusing a vaccine should send you to the back of the queue.