The Constitution is there to protect the basic rights of the people and dictate how the federal government will function, is it not? If this document is intended to protect basic rights, then certainly one of these basic rights is the right to life.
I agree only in part. A very important purpose of the Constitution is to protect rights
from the federal government. The regional constitutions protect rights from regional governments.
I can understand your argument with respect to abortion and the death penalty, but not euthanasia.