"The veil of ignorance is a method of determining the morality of issues. It asks a decision-maker to make a choice about a social or moral issue and assumes that they have enough information to know the consequences of their possible decisions for everyone but would not know, or would not take into account, which person they are. The theory contends that not knowing one's ultimate position in society would lead to the creation of a just system, as the decision-maker would not want to make decisions which benefit a certain group at the expense of another, because the decision-maker could theoretically end up in either group."
Some may object to the application of this moral theory for rationing life-saving health care and that's fine. But they need to put forward their own basis for making those decisions, or spend more time studying and thinking before speaking.