The privitisation of the technology is bad but not the technology itself. Labor should be socialised and to be against this is not marxist.
Properietorship is heavily baked into our modern cultures due to liberalism so you are going to hear a lot of bad takes such as "stealing" or moralism based on subjective quality on a given AI arts' aesthetics (even if you were to homegenise the level of "quality" to call it substandard, all it then means is that the technology should improve. Talking, for example, the "soul" of art is just metaphysical nonsense. Human beings and their productions do not possess some other-worldly mysticism) - even from people who consider themselves marxists and communists.
The advance of technology at the cost of an individual's job is the fault of the organisation and allpcation of resources, ie capital, not the technology itself. Put it this way: people can be free to make art however they want to and their livelihood should not have to depend on it.
If you enjoyed baking but lamented the industrialisation and mechanisation of baking because it costed your livelihood and you said it was because the machines were stealing your methods and the taste of the products weren't as good would we still consider it a marxist position? Of course not.
The correct takes could be found here:
- https://redsails.org/artisanal-intelligence/
- the above author's website in general has some good articles https://polclarissou.com/boudoir/archive.html
If you're a marxist, do not lament the weaver for the machine (Alice Malone): https://redsails.org/the-sentimental-criticism-of-capitalism/
Marxism is not workerism or producerism; both could lead to fascism.
Artisans being concerned about proleterisation as they effectively lose their labor aristocracy or path to petite-bourgoisie may attempt to protect their material perspectives and have reactionary takes. Again this obviously is not marxist.
TLDR - bidetmarxman is correct. I would argue lot of so-called socialists need self-reflection but like I said their view probably reflect their relative class positions and it is really hard to convince someone against their perceived personal material benefits.