Speaking as a professional artist myself, I'd wager that many of the responses you've run into are emotional ones. Supporting oneself as an artist was already difficult, and AI generation is an astoundingly powerful tool. For a long time there was a sense of financial security in quieter/grunt background and asset design work such as the WotC backgrounds in this situation. WotC in particular was touted as "one of the companies that actually pays artists to make neat things" in fantasy art circles, and so their fans and artist clients (often one in the same) feel betrayed.

I'm personally a sad-bitch about it because my peers and I have been posting art for one-another and fans online since 2002, our work was scraped, and now people can click a button to ape the look of all of our work without having run across it organically, knowing our names, or being able to, like, say hello to us. I really don't mean that out of self-importance or ego- the community I grew up in online was all about discovering working artists by word of mouth this way, and getting to know them. So it's a weird (albeit unintentional) dismantling of a community and "a way that was", so to speak.

More practically one of my specific worries regarding AI generated images: Illustration in the literal sense of the word means 'to illuminate', to make clear'. Think along the lines of technical illustration- biological in my case, but this extends to mechanical parts, manuals, diagrams, medical books. These are situations where clarity is seriously important, and I feel like the deluge of generated images (and the general public's lack of information about how the image gen works and how to decipher them) will cause harm.

Hopefully that wasn't too much of a ramble. 🫤 TLDR: It isn't necessarily immoral, but people are emotional, it's a big change, and it's happening really damn fast.

One of the big issues is that AI art doesnt have it's own style. It's a rough amalgamation of art stapled together and smoothed to remove the seams. The art used to staple together is were this style comes from, but without knowledge of or credit to that artist. The AI doesnt do a creative process only mimicry, it cant create a new movement in art like modernism or surrealism but it can ape those existing movements. This is the problem with it. Stolen artwork stapled together without any new creative ideas thrown in.

It's not using a computer that's the problem. The issue is that generative AI scrapes the entire internet to feed its model without compensating, or even asking, creators for using their work.

Go look up the existing arguments against AI, and write your rebuttal to those, and then debate people about it. More productive for everyone involved.

People are mad to realize something they thought was spiritual and purely human can be reduced to a mathematical algorithm and be generated by machines.

Some claim they're mad that it's because the training looked at art without permission to develop the algorithm (which everyone knows all artist do, making those people look like complete hypocrites), but that just sped it up. It would have happened eventually anyway, because the fact is, art is not spiritual or uniquely human, it's patterns and shapes, which computers are great at.