I don't think you understand how burden of proof works. Let me explain:
You're the one trying to make a claim here: That the "mandella effect" is true, that some sort of parallel universe or some sort of similar timeline forgetery has occured. That means that burden of proof on this claim is on you. The "evidence" that you've provided so far is: "This christmas ornament has different audio from the movie." But that's not what you're actually saying. Because so what if it doesn't have the same audio, that proves nothing. It could be, and indeed would be entirely reasonable for it to be edited. What you're actually claiming is that "This christmas ornament does have the same audio as the movie, and is hence unedited. It seems incorrect because we're in a different timeline that had a different movie." Your claim rests upon the fact that the audio is unedited audio from the movie, and since that's part of the claim you're making, burden of proof is on you.
Well, maybe claiming it as evidence is wrong, and I'm not searching for somone to disprove the mandela effect or prove it.
What I'm looking for is why no one can answer the questions I've posed without evidence, and only assumption, because something just isn't adding up here.
Even if this is edited, how is it literally the exact audio clip as the original, with a different word?
Why does it exist?
Why isn't it in the movie?
Why would this line exist for a single toy?
How did it get there?
If this is the edited line, why does it sound unedited, and perfect, and why would the line need to be edited in the first place?
The claim "No, I am your father" to take the line out of context doesn't really make sense, considering:
A. This is a Line in the movie that is literally the main plot twist, so your spoiling stuff, so its clear this isn't for everyone. (but yeah everyone knows it now.)
B. This is a fan toy, Christmas ornament, and the speakers just barely make it past the line of being able to hear it clear (and no mixing up 'luke' and 'no' in audio sound isn't possible, they don't even sound similar), so it's clear this wasn't an important memorobelia, so why bother? (maybe if I bought one and soldered an audio cable inside, it might have better audio output.)