Everyone declaring this to be a good idea are free to get themselves a donor card. They are not free to force such a rule onto others; not individually nor through government. I reserve to myself ownership over my body without having to petition government. I likewise reserve to myself the right to decide what happens with the remains of my next of kin should they decease, unless they themselves declared otherwise. I will not tolerate any stranger, even if he be an officeholder, claiming those remains before me. Wirting such an unjust claim into law would not change a wrong into a right, but rather discredit the lawmakers.

By arrogating to itself the monopoly over donor organs, government created the donor-organ shortage. The solution is breaking the monopoly, e.g. through voluntary programs like LifeSharers or even through lifting government's ban on the dead-donor market. More government is not the solution. It is the problem.