I blame the globe-makers!
I've encountered some of these people here too. They love to believe they are in on the story behind some conspiracy that somehow all nations have collaborated on. Astronomers, meteorologists, pilots, sailors, cartographers and millions more would have to be in on it, but not of them have seen fit to spill the beans. Instead we are asked to believe a few Youtubers and rappers. They will try to get you to watch some videos, but it's really not worth your time. Some of the scientific ones that counter them can be educational though.
There will be things that are hidden from us, but considering that most people don't care what shape the world is this seems like a lot of effort for no reward.
Embrace the ball!