I doubt that we should prevent assisted dying

I understand that there is a finality to helping someone end their life. But it is a safe bet that an individual that reaches the decision to meet the end of their life on their own terms would have spent plenty of heart wrenching moments wrestling with the situation.
  What about the conservative movement gives people the confidence to say that assisted suicide is so wrong? How could you campaign against the possibility of helping a fellow human find as graceful and end as might be afforded them?
There is a very well thought out treatment of the question here. And there is mention of an earlier discussion in the article, well worth a read.