Another problem your lack of analysis capability has created for you is the fact that the sole

widely used method

for mapping and navigating the surface of the planet, is the combination of two separately derived spherical coordinates systems: Longitude, and Latitude.

Each of these is derived solely and only, from the angles related to a sphere of a specific, unchanging diameter.

You will not EVER talk your way out of this.

Longitude is derivable SOLELY from a sphere/oblate sphere.

Latitude is derivable SOLELY from a sphere/oblate sphere

You will never impeach it, you will never do anything but sound so stupid that you didn't know longitude and latitude are each, independently derived from those angles pertinent to a sphere.

There's a reason these two coordinates systems are each of themselves, referred to as ''spherical coordinates'' systems.

Not a cube, not a pyramid, not a flat surface. They are ONLY able to be derived for spheres: and if the surface of the Earth was anything BUT a sphere: they wouldn't resolve accurately on the planet surface.

As badly as you hate that, you're the one who's never shadowed a seat in so much as a boy scout class in navigation.

You will NEVER escape the fact that from about 300 years ago, to TONIGHT: every single navigational technology on this planet resolves surface location through use of two,

independently derived,

spherical coordinates systems: one for East-West - Longitude, and one for North-South: Latitude.

You will NEVER bring that into question. E.V.E.R. no matter WHAT you do.

https://flatearth.ws/wp-content/uploads/2017/12/fisheye.jpg