It's not so much that "AI isn’t for everyone", but that many people see AI images as a result of theft. It's not really a problem with AI generation itself (though people do have opinions on the resulting quality), but that most of the available generators are built/trained using other peoples' hard work without knowledge and/or compensation, and/or obtained permission unethically^*, for the companies to get unfair advantage and commercial gain over the artist themself (imagine your work being used to train an AI, where other people then use that AI to generate images instead of commissioning or hiring the artists whose work was used; using the artists' own work to compete with them).

^{* Meaning burying "we can use your art for our AI training" in the TOS for widely used and relied upon software that people are forced to use. Making it technically legal, but not something people would have agreed to if they had a choice.}