Right now, anti-AI rhetoric is taking the same unprincipled rhetoric that the Luddites pushed forward in attacking machinery. They identified a technology linked to their proletarianization and thus a huge source of their new misery, but the technology was not at fault. Capitalism was.
What generative AI is doing is making art less artisinal. The independent artists are under attack, and are being proletarianized. However, that does not mean AI itself is bad. Copyright, for example, is bad as well, but artists depend on it. The same reaction against AI was had against the camera for making things like portraits and still-lifes more accessible, but nowadays we would not think photography to be anything more than another tool.
The real problems with AI are its massive energy consumption, its over-application in areas where it actively harms production and usefulness, and its application under capitalism where artists are being punished while corporations are flourishing.
In this case, there's no profit to be had. People do not need to hire artists to make a banner for a niche online community. Hell, this could have been made using green energy. These are not the same instances that make AI harmful in capitalist society.
Correct analysis of how technologies are used, how they can be used in our interests vs the interests of capital, and correct identification of legitimate vs illegitimate use-cases are where we can succeed and learn from the mistakes our predecessors made. Correct identification of something linked to deteriorating conditions combined with misanalyzing the nature of how they are related means we come to incorrect conclusions, like when the Luddites initially started attacking machinery, rather than organizing against the capitalists.
Hand-created art as a medium of human expression will not go away. AI can't replace that. What it can do is make it easier to create images that don't necessarily need to have that purpose, as an expression of the human experience, like niche online forum banners or conveying a concept visually. Not all images need to be created in artisinal fashion, just like we don't need to hand-draw images of real life when a photo would do. Neither photos nor AI can replace art. Not to mention, but there is an art to photography as well, each human use of any given medium to express the human experience can be artisinal.
Glad it worked out!