The point is of course that we don't do that, you have the *choice* to donate or not, even if the prospective recipient will die. I think carrying a baby to term and giving birth, which you view as compulsory, is quite comparable. Basically, we have a rights in conflict situation here, adult citizen vs a potential person. You have lots of empathy for the potential person, and only scorn for the adult citizen, who you imagine as selfish and immoral. As to that, some are, some aren't, but the nature of rights is you have them by default anyway. Control over one's own body is a pretty big thing for a potential person to cancel, we don't let adults with bad kidneys do that. Oh my goodness indeed.