If you think you can visibly see the curvature of the earth looking out the window of a plane then Idk what to tell you. Especially since even science says you need to be at 35,000 feet to see the curve but also need a virtually cloud-free view along with about a 60degree FOV. So forgive me if I am if not taking your word for it that you've had all these things. Especially since I have see plenty of video from pilots during flights from the cockpit that show a very, very flat horizon with well over a 60 degree FOV.

I am not willfully choosing to ignore anything by the way. Centuries of scientific research mean next to nothing when they are riddled with inconsistencies, and blatant lies. It sounds more like you are willfully ignoring clear evidence that the centuries of scientific research are being debunked left and right and cognitive dissonance disallows globe-believers to use their minds independent from what they've been taught.

Just because someone says it's true, and have pages of numbers and scientific jargon to explain it, does not mean it's true. Look for yourself.