Content generated by plagiarism machines is worse[1][2] than intelligently designed projects. It is just a stochastic parrot[1].

And there are severe moral and ethical issues with the use of LLMs, both in regard of strip-mining the totality of human knowledge and art to generate soulless slop, and in regard to the damage done to the world[1] and to people[1][2]. And, if you happen to be Catholic, it is also opposed by the Pope (and also by many Christians of denominations other than Roman Catholicism) for being a "Tower of Babel".