[shampto3]

Good question. I am not aware of any "opt-out" list for baptism by proxy.

The doctrine of the church, however, is that even if a person is baptized by proxy it has no efficacy if the person in the afterlife chooses not to accept it. The agency to choose is a core belief, and we believe it is important for the individual to decide whether they want to be baptized or not.

I still understand your desire to not even have the ordinance done in the first place regardless of whether you believe it does anything, but like I said before I'm not aware of any way to "opt-out". I wish I could be more helpful.