This isn't based on speaking with Flat Earthers or watching their videos...it is mostly based on my *ahem* impeccable intuition.
What did the discovery of evolution do to the human psyche? It did more than just enlighten us of how things change. It also inspired something fearful, a belief in progress where progress shouldn't be projected. Darwin's point was not that change from stupid to smart, from worse to better. His point was simply that things change over time. Period. Change. Not progress, change. Not better nor worse, just different from now till then.
The lesson humanity took from this, however, was one of superiority vs inferiority. That the better among us would survive, and the weak would, and should, fail. Humanity projected fear, insecurity, prejudice, and hubris on to nature in this way. We live in a world will a fascination with and desire for evolution. We think it's what we're supposed to do. Humanity is supposed to get better than what we were and what we are.
The emotional pull that creationism and flat earth provides, in addition to the distrust of intelligence as well as the will to get more intelligent, is the desire to live in a world where things don't need to change. A feeling that's like we're all on the same level, the animals, the plants, us--we've all been placed here alongside each other. We are not more evolved or less evolved, we're just hear next to each other. It's a kind of worldview that removes the perception of time and progress. It's timelessness itself that is the appeal, as time is so linked to progress and success. It brings back the perception that we are beings walking around a 3D board, instead beings who move through time--from immaturity to maturity, from nothing to success, from young to old, low status to higher status, etc.
I believe many of us, through social media and career hubris, are losing touch with the primitive basics of our existence, replacing it with an abstract one. The abstract one is all about moving mentally to more enlightened state, the primitive one is only concerned with the field and surrounding in which we live, moving left to right, here to there...not moving to more or less important or significant or useful or worthy. We are here, at the end, this is it. When I think of a timeless space, the image that comes to mind is like the Never Ending Story, with a floating island in the middle of space. Like Asgard, too, it's a place in our imaginations which remind us of something, and I think these images remind us of something we have lost and are trying to get back to.
It's something to think about. What does the floating island with the crystal palace actually mean?