Living souls on dead Bodies

Is euthanasia ethical? Is it moral to kill people when they are to a point that they cannot live a full life? I once wrote ''what we need is not the will to believe but the will to find out" so to come to a conclusion if to kill someone we need to research and find out both sides of an argument to balance the harm and the good that will be done to the person, irrespective of personal preference. If your religion or church states is agaisnt the because it has a biased side to the argument dont participate on the research because religious dogmas cannot be proven right or wrong so it cant be final. Euthanasia means ''good death'' who wouldnt prefer to die with a little honor or just the fact of it being painless instead of living a life of pain and disability. I think that voluntary death or Euthanasia should become legal and it is moral because even if in a country voluntary death is illegal the country is still killing hundreds of people ''legally''. I also think that poeple with mental and physical disabilities that cannot stand for themselves and say that they want out, or that they are suffering way too much have no cause or purpose in life and a life without a meaning is not a life at all. Its like they are already dead but with a living body that doesnt work at all. So if you ask me if Euthanasia should be morally acceptable and if you ask me that it is ethical to kill someone on a vegetative state i say it is beacuse your are relieving them from heir pain and their burden.