Lego state sanctioned killing is the killing of ordinary people, with those people having no say in the matter of their death.
Voluntary euthanasia is for those people, including myself, to have end of life choices, not for those people who do not want VE regarding their death when pain and loss of dignity occur, this is requested by only those people who want VE about their ending. A bomb on your head gives you no choice, that is the difference.