There's a couple of orthogonal arguments here, and I'm going to try to address them both: are you an artist if you use AI generated art, and why do I hate AI generated art?
Telling a machine "car, sedan, neon lights, raining, shining asphalt, night time, city lights" is not creating art. To me, it's equivalent to commissioning art. If I pay someone $25 to draw my D&D character, then I am not an artist, I've simply hired one to draw what I wanted to see. Now, if I make any meaningful changes to that artwork, I could be considered an artist. For example, if I commissioned someone else to do the line work, and then I fill in the colors, we've both made the artwork. Of course, this can be stretched to an extreme that challenges my descriptivism. If I put a single black pixel on the Mona Lisa, can I say I collaborated on the output? Technically, yes, but I can't take credit for anything other than putting a black pixel on it. Similarly, I feel that prompt engineers can't take any credit for the pictures that AI produces past the prompt that they provided and whatever post-processing they do.
As for why I hate AI art, I just hate effortless slop. It's the exact same thing as YouTube shorts comprised of Family Guy clips and slime. I have a hard time really communicating this feeling to other people, but I know many other people feel the same way. Even aside from the ethical concerns of stealing people's artwork to train image generators, we live in a capitalist society, and automating things like art generation and youtube shorts uploads harms the people who actually produce those things in the first place.