I don't think you know what the phrase "culture war" means. Some of the biggest corporations have harvested all the data in the world without compensating anybody for it, are selling that tech (the same one made possible by said theft) to other corporations who can't wait to replace as many people's jobs as possible with it, and if that wasn't enough this tech requires building more and more highly energy-intensive and environmentally destructive computer farms ("data centers"). Any reasonable person, whose brain hasn't rotted through from talking to ChatGPT for hours at a day, should be worried about how all of this will impact the job market, the environment, and the economy.
And if you look at the Twitter bio of Japanese manga artists, a lot of them explicitly say it right there that they don't approve of their art being used to train AI. I don't think Yazawa the character is "on my side" or whatever, but it's also funny to assume that the mangaka included that detail completely at random, given that as an artist his and his colleagues ability to secure work is threatened by GenAI corporations.
But I don't even have to speculate about the future impact of the industry to be tired of it. The fact that computer parts became more expensive thanks to the AI rush, is a nuisance that is already happening and is very much about money. Sam Altman and his billionaire friends ended up making actually useful technology more expensive, in the pursuit of the machine that shits out a lower quality facsimile of everything. That should be enough to annoy anybody who just doesn't like getting ripped off. Is that a left vs right culture war issue too?