I never said the North Star is the only navigational tool. Please provide proof.

Of course you didn't, I did, because it's a historical fact.
Celestial navigation is based on the stars using a star map for the proper season and time of night.
Navigation was done using the North star for centuries.
The North Star is not in the same place at the same time of night every single night, therefore something is moving. I believe it is the sky. Try it. Go find the north star, now go find it every day for 30 days. Did it move? It looks like it did. Ask yourself why? Probably perspective.
It moves in very small arcs; but that's missing the point. Generally speaking, it doesn't move, which is why it's ALWAYS been used as a navigation tool. In the northern hemisphere, it's the most constant celestial point in the sky.
Faith and scripture have not been clear enough on this matter to prove anything.
You sound like a Modernist because "proving" something is the exact opposite of Faith and the authority of Scripture. If you need proof, then you no longer have/need Faith.
Meanwhile, Scripture does offer some proofs/facts, which we must believe:
1. Firmament
2. 4 corners of earth
3. Earth's foundation/pillars
4. Earth doesn't move.
These are just 4, simple facts which we must believe, as part of the infallibility of Scripture. The only model which can answer these facts is FE. There is no globe model which does, therefore it fails right out of the box.
Again, I start with the "non negotiables" of Scripture and find a model that fits. You are starting with a model and then trying to make Scripture fit (or you ignore some Scripture altogether).