Yes, because it's hostile to democracy and freedom as whole. Even if we could let everyone not read and write and use LLMs, this is just asking for trouble. Reading and writing is precursor for other skills, in fact, just about every skill.

This includes analysis, critical thinking, skepticism, morality, you name it. Without literacy, people are easy to manipulate. It won't happen immediately, but it won't be long until we revert to a world state where organizations like the Catholic Church control everything and order around millions of people to kill each other.