It’s already happening to some extent (I think still a small extent). I’m reminded of this Ryan Long video making fun of people who follow wars on Twitter. I can say the people who he’s making fun of are definitely real: I’ve met some of them. Their idea of figuring out a war or figuring out which side to support basically comes down to finding pictures of dead babies.
At 1:02 he specifically mentions people using AI for these images, which has definitely been cropping up here and there in Twitter discussions around Israel-Palestine.