@gone for good:
The elders do have authority but ONLY UPON MEMBERS of their own church.
Our document repudiates their churches' laws and authority over one single individual from one date forward.
When you hand them that document (because you suddenly 'appear on their radar'), they will take it, form a non-judicial committee to review your document. They can do that. Forming a non-judicial committee to review information you provided them is not exercising their authority over you. It is an internal procedure they follow in order to respect your wishes. What did you expect the organization to do, take your document and not read it? That is the procedure they use to process your wishes.
They will review your wishes, and adjust their records. They will file paperwork, and make announcement about your decision.
Let me try to put this simply:
1) You: "I don't want to be one of Jehovah's Witnesses, and I am not. Here I have this declaration!"
2) Elders: "OK. We will remove your name from our roles, and let everyone know. Consider it done."
And you think this is, in some way, illegal? That a court somewhere is going to affirm that by respecting your wishes, honoring your right to freedom of association, that they are, in fact, not honoring your right for freedom of association?
This is madness.