those over 50-100 ly out, constellations could have no perceptible change over tens of thousands of years at least.
The science community realized this flaw to the globe model and the only solution was to claim the stars are light years away. It's made up BS to keep the theory alive
Smurf community realized that by sending nonsense posts about Flat Earth can keep the humans busy. Flat Earth is made up BS by smurfs like you to fool humans.
There's no calculations to make. Just look at the sun. It's so obviously not 93,000,000 miles away I find it amazing anyone ever bought that as reality.
If you look at it in a logical and analytical way you can realize how far it is. If your thought is guided by faith and prejudice, then you still live in dark middle ages.
The sun is obviously not close and local because over the course of the day it doesn't change in angular size, also it goes down the horizon and disappears from view.