You won't be denied tramua treatment for a gunshot because your doc told you to stop playing with guns.
You won't be refused heart medicine because you didn't stop eating bacon when your doctor told you to 5 years earlier.
You won't be denied ER treatment because you were drunk when you crashed your car.
There is no rule where we have to treat all patients equally (including mass murderers) except those who didn't accept n earlier-offered treatment or who did something that caused their own medical condition (i.e which probably includes most medical conditions).
Medical care is not an exploding offer.
Honestly - shame on you for trying to sneak in an absurd exception just so you can abuse the medical system to hurt people you don't like. That's not what hospitals are for.