It isn't "one case ... in isolation", though; I could just have easily cited Josef Mestre, or any of the myriad children of Jehovah's Witnesses whose parents try to stop them having transfusions. I could cite the Witnesses themselves, who've been told, based on no evidence at all, that blood transfusions lead to eternal damnation, and as such have made what is by any reasonable standard a misinformed decision not to have them. I can't work out the relevance of Ms Schindler-Schiavo's case, or the WMD thing. I think it should be obvious I'm against DNR orders being made without the patient's consent. (In the case of Schindler-Schiavo, I think her husband, as her guardian, can give consent on her behalf.)

Au contraire - I can be an elk right up until I decide to gore someone else with my horns (antlers?) - google "otherkin" and see how many people are rubbing along just fine, with beliefs so at variance to the norm they'd make your ears bleed.

Yes, and ask them to believe they're not elks, and see how easy they find that. You can't believe something just by wanting to. If you really thought you were an elk you wouldn't be able to type a reply. You have the right to believe what you please -- you're just not capable of doing it.