As most of the members know, I'm both a capital L and small l libertarian. One of the most basic tenets of our philosophy and planks in our party platform is: Consenting adults must have the right to do anything they want, so long as it causes no direct harm to others.(snip)
My thoughts exactly, except you've expressed them more verbosely. It is not the place of the state to over-ride a person's judgement when it comes to ending their own life.
I do think the State should offer assistance and education (in the form of counselling, and 'medication'), but participation should be voluntary.