Right. Except Pole to Pole circumnavigation trips have occurred.
Looking at the routes of those, they don’t go straight on at the South Pole
That do not happen to be pole to pole.
Ok. Well how about you look the route of one of them up and show how it maps to a flat earth map.
Well, how about eliminating what you wrote to begin.
You write, "Pole to Pole circumnavigation trips have occurred."
Immediately after that, you write, "Looking at the routes of those, they don’t go straight on at the South Pole."
Meaning that is not pole to pole.
Obviously, since the maps and charts used were flat, it worked just fine.