As someone who is actively planning on living this way in the next decade or so, the appeal is very real.
It's an escape from the rat race, from chaining yourself to some soulless corporate office in exchange for fiat currency with which to buy meaningless consumer garbage. It's an escape from nosy, judgmental neighbors who'll get nasty with you for not having a perfectly manicured lawn. It's an escape from having to rely so heavily on big box stores to supply you with the stuff you need to survive, and hope that they're not jerking your chain about where it comes from or how it was made or what's in it. It's an escape from the needless complexity of the overwrought-ness of modern "civilized" life.
For my husband and I, it's about resilience and responsibility. If we want meat, we'll have to take it upon ourselves to end the life of an animal to earn that meat. If we want vegetables, we'll have to learn what our land can and cannot give us, use our wits and our knowledge, and eat humbly. Our house will be small, and it will be simple.
I don't really want internet, but the husband does, so we'll have to figure that out. I've abandoned social media almost entirely, I no longer have a smartphone, and the difference in my quality of life from that alone is phenomenal. Who needs to keep in touch with people they never see? Get updates on distant relatives' kids that you'll never meet? Be inundated with pictures of new manicures or fancy cocktails or selfies with the same smile, taken from the same angle? Not me! I really don't care what you did last weekend. I don't care what new car you have, what great deal you got on X, Y, Z. I really don't.
As for the seeming comforts and safety of modern life, it's debatable. If you're really interested in the subject, I'd recommend a book called 'Why Things Bite Back'; it's all about innovations that were originally designed to improve peoples' quality of life and wound up making things worse - and these are things that we encounter every day. A philosopher and historian by the name of Paul Virilio said it pretty succinctly: "When you invent the ship, you also invent the shipwreck; when you invent the plane, you also invent the plane crash; when you invent electricity, you also invent electrocution..."
But, YMMV. It's freedom if I'm allowed to live how I want to live. Being chained to a soul-destroying 9-5 so I can pay bills for things I don't even want (but are required by law for me to have) is not freedom. If I'm gonna be busting my butt to provide for myself, why not remove all the middlemen who want to take a cut? Or at least, as many as I can?