A few things:
1. I personally object to the 'Ancient Builders' theory that Matpat has popularized. The fact that an entire set of people were made just because Villagers can't place blocks in game seems dumb to me because they can make golems, and have villages they built. This is my own personal opinon, but I feel that it is important to note as it likely skews my perspective on this.
2. "test.160.test.player.5051"? I may just be dumb, but is this meant to mean something? and why would the villagers be important there?
3. Notch is no longer involved in Minecraft. At all. You may be talking about Jeb, but Notch's only connection to Minecraft now is the base code, the few Minecraft devs that he is still talking to, and the credits. He had no input on the Waren or 1.19
4. We don't actually know that the thing in the center is a portal. If we keep deluding ourselves into believing it is going to be a portal, we are setting outselves up for disappointment. Lore for Minecraft may change over time, but it should say true to what the minecraft world shows us.
5. Why are we using determination now? Last I checked, determination was specifically for the Undertale universe, not Minecraft.
6. All our opinions are worth a pinch of salt. Every Minecraft world's lore is up to the players in the world. Each one is different, so your lore could be correct for a Minecraft world, and mine for a different one.
7. I know that you are trying to emphasise specific elements by capitalizing it, but you do it too much. You have a block of text with a bunch of capitalized words, which makes it harder to read than it needs to be.