Every right you have is determined by the government systems you live under. If they declare no food goes to anyone in your town, and anyone who provides them food or grows food there will be executed on site... Politics just determined you don't get food.
I don't speak for everyone, that's how the world works. You can't even choose to just leave your government system either, unless you find another government system willing to take you.
I think the way Lemmy / PieFed are set up you can't inherently "follow" someone like a feed. PieFed being an article posting site (?) Like Lemmy they support each other right away. So posts on that platform while written in another programming language, still mesh and show.