Flat Earthers hold their belief because they know something's off about the official narrative and it's the closest they've gotten to the truth. It's the most stigmatized and ridiculed theory, not because they believe in a flat earth, but rather the other truths many have uncovered along the way.
(media.communities.win)
Speculation
Flat earthers don't believe what you are showing here. There is no evidence that these other "planets" exist other than Nasa cartoons. If you look for yourself through a telescope all you can see is a circular light.
Many people actually do believe in flat earth because it makes more sense.
Ok they are not fake, but they are also not planets. I don't know exactly what they are so for now I will say they are some kind of star/light.
I don't claim to know exactly what the earth is. However flat earth makes the most sense to me. Most of the issues can be at least partially, if not fully explained. But of course there is always some mystery left.
I'm not sure what you're referring to about the stars. Maybe give a specific example.