I will partly agree with one thing you say: the process can be demeaning. But only when we allow our court systems to treat criminals lightly and not hand out the harshest penalties permitted by law to those who deserve it. Yes, the accused do have certain rights, and they must be protected. But once convicted, those rights are reduced to bare minimum, or at least should be. I, for one, have never felt demeaned by any execution.
Something else we can agree on, at least partly. (Will wonders never cease?) I don't feel the relatives would feel adequately compensated, either. But they might feel that justice had been done. They can know that the killer won't be permitted to gain even the meager amount of pleasure that might be found in a prison environment. And while I have thankfully never been in the position of such relatives, perhaps they can gain a bit of satisfaction from knowing that the person who killed their loved one will know his end is coming, know the very day and hour, and will have to deal with that knowledge. I don't say it would bring them joy. At least, I hope not. But maybe some closure. So they may grieve for their loved one without the constant knowledge that her killer is still alive.With regard to the point you make about surviving relatives, their loss is sad and the consequences are regrettable. But I don't believe any of the people in the situations you describe would feel adequately compensated by the death of the murderer, and, frankly, if that was all it took to put matters right for them, one must question how seriously affected by the death they truly were .