The guy you’re replying to is a Native American. He grew up living off the land and knows how to survive, no, thrive, without the supports of agriculture.
Whoa boy, not gonna touch the mysticism and Other bullshit with a ten foot pole.
But unless you already have a good chunk of farmland ready, you aren't going to survive the first winter. That is WHY communities (even the magical Native American ones) are so dependent on having ships and wagons FULL of supplies to survive that first winter because going from normal land to farmland is the better part of a year on its own.
That ALSO ignores that most farms are not actually self sufficient due to a mix of needing to cycle crops to keep the land fertile as well as needing alternative sources of food and energy (often livestock). The Magical Native Americans largely depended on animals like Buffalo and Deer to make up the latter and... yeah. And modern day "live off the land" folk tend to rely pretty heavily on odd jobs (or money from their parents) because actually surviving off foraging and wild animals just isn't feasible outside of VERY few regions. And even those mostly only work because it is one weirdo that the park rangers tend to look the other way for.
If OP has a community of like minded people? It is very doable. If OP is a lone gun nut hiding out in The Wilderness? Whatever level of fairly racist mystic fantasy you can think of won't help.