I'm afraid your belief that we can somehow tell 'rational' suicide from any other suicide is what's simple minded, here.
Are you saying that you think a 75-year-old in good health, who has children, grandchildren, a partner, and a fulfilling life, but who has talked about dying to avoid old age for decades, and who can pay for a suicide clinic, is a 'rational' suicide? But a chronically depressed, single 50-year-old who has suffered immense trauma they've never been able to move past, and has poor quality of life, who also doesn't have the money to access a suicide clinic, isn't rational?
Hmm...
By what criteria are you deciding that? Because to me, it makes more sense that the 50-year-old should wish to die (not that I think they should be helped to!)
How do you decide who needs help to avoid it, and who should be assisted to receive it? Because from what I've read (partially paralysed women, depressed women, women grieving a child's death - a lot of women, now I think about it), it really seems to simply come down to whoever can afford to pay for the trip and clinic.
And I'm not scared at all. Why would I be? I'm just pointing out the hypocrisy of decrying suicide as terrible, while also praising suicide as great. It doesn't really work.