Involuntary euthanasia means someone is being helped to die without them giving permission or without them wanting to die. It's like if a doctor gave you medicine that made you go to sleep forever even if you didn't ask for it or even if you wanted to keep living. This is really bad because everyone has the right to make their own choices about their life and death, and nobody else should make that choice for them. It's important to always respect people's choices and give them the right to make their own decisions, even if we might not agree with them.