Even with that, being absolutist about this sort of thing is wrong. People undergoing surgery have spent time on heart/lung machines that breathe for them. People sometimes fast for good reasons, or get IV fluids or nutrients provided to them. You don't see protestors outside of hospitals decrying how humans aren't meant to be kept alive with such things, though, at least not in most cases (as always there are exceptions, the Terri Schiavo case for example).
If I want to create an AI substitute for myself it is not anyone's right to tell me I can't because they don't think I was meant to do that.