Most of them because they don’t understand it. Some literally think it’s a database of all the information copied with an auto-complete function tacked on. They don’t understand that it’s a neural network with multiple layers of digital synapses that works very similarly to our own brains - with the training data used to adjust the weights of the synapses at each level.

They think that training the model using the data is the same thing as copying it into a repository for it to regurgitate later, so they surmise that it can only perform plagiarism. They also believe that massive, inefficient data centers are the only way to utilize it, and they rightfully hate the data centers, and their hated then extends to the AI itself.

They also expect perfection, and use any instance of hallucinations as evidence that the entire technology is useless. They don’t believe that the hallucinations are solvable so they see the entire branch of technology as a dead-end.

Honestly, I think it’s just an extension of the hatred they hold for the companies primarily associated with AI. Those organizations are doing great harm to society, and our planet, and should be reviled. However, they don’t realize that the two are separable - that AI is an amazing technology, and the companies championing it are evil. Both are true, but it’s a difficult concept to understand with only a surface-level understanding of the industry.