In all fairness, I don't mean to trash your reasoning. But it IS human reasoning. You write as if the bible said "Jesus was born on Sukkot," whereas you actually have a long trail of cascading assumptions to reach that point.
For example, your first step is your assertion that "Most Jews believed that Elijah would come at Pesach to announce the coming of the Messiah (Mal 4:5). How Malachi 4:5 supports your assertion is an argument you didn't (yet) make. Even assuming your assertion is true: so what? Most Jews also expected Christ to be a king in this world. I've even heard that in THIS context, Elijah refers to the first coming of CHRIST, not John. Yes, Jesus quotes Isaiah's allusion to Elijah as referring to John, but does that mean Malachi is? I think it's a pretty weak case that John fulfilled the prophecy of Malachi
But don't let the contentiousness of that throw you off the main point: You need to prove the doctrinal necessity that Malachi 4:5 be interpreted the way you interpret it. You haven't... yet. The point is that there are other ways to interpret who Malachi refers to, let alone the fact that I have no idea how you come to the conclusion that it refers to Sukkot.
Each step you likewise procede with assertions which would be precariously and presumptively based on arguments, even if the arguments were certainly true... while in fact you haven't made the arguments. Again, I don't mean to assert that they're false arguments. But you haven't made your case. So you can drop the proclamations like "The question is whether you believe and trust the Holy Word of Elohim in Luke 1 Xenia's unique notions or you trust the traditions of man, and have a reasonable conversation, or you can be ignored.
You seem very confused and unable to follow a scripturally based argument.shalom b'SHEM Yah'shua HaMashiach AdonaiOr you don't like the result and create confusion to cast doubt.
Good observation, dangus, because it's universally applicable. When it comes to anything that involves human interpretation, especially the Bible, some people seem to present their private viewpoints as if God were speaking through them, and they do it without any humility.