At least with writing it's fairly easy to implement on your own with little more than what most people would have available in a rudimentary survival situation. It'll be a tough day when someone goes to sign into their GoogleLife (tm) and find out that they can't get AI access because "precluding conditions agreed to upon signing"
As I see it, the solution to this is to invest in open source. As for a "survival situation", a solar-powered laptop with a locally running LLM would definitely be the first item on my list.
It shouldn't be, because LLM:s can't be trusted in the way literature can. People around you are also going to question why you insist on such a power hungry setup.