Look, you cannot choose to be born. You can decide whether to jump under a bus or not, so you can choose when you die, but its an imperfect control, because you could have a heart attack or a stroke or an accident and be dead at any time. So, you cannot control when you are born, you can only partially imperfectly control when you are going to die, how can anyone say they “own” their life?
And if you dont have a right to life, how can you possibly have a right to die?
Its not about using God to bludgeon people. The point is that you are the custodian of your life, rather than the “owner” of it. You can (imperfectly) decide what you are going to do with that gift of life, for good or ill, but because you are a custodian, not an owner, other people have a share too. I am me, but I am also someone else’s son, someone else’s husband, somone else’s friend, someone else’s teacher or confidant. If I choose to end “my” life, I am also destroying that which affects other people. Suicide is often portrayed as being a selfless act “I dont want to be a burden any more”, but in fact I would argue its usually an extremely selfish one. “I can’t bear living any more” “I can’t stand it” “I’m going to die anyway” “I, I, I...”.
You could say that not “owning” your own life is allowing other people to enslave you, but its a very odd way of looking at it. Our control of our “own” life is so imperfect and anyway, no man is an island. Would you really want to not have other people share your life? To do that you would have to be utterly independent of everyone else, and that would be horrible.
And if you dont have a right to life, how can you possibly have a right to die?But we do have a right to life, and thus a right to end it.