AI, at least for now while it's still free/very cheap, enables producing a lot of very low-value content that in the past you never could have justified spending money and human labor on. The cost or time needed to make a poster or a flyer acted as a value-based gatekeeper. Today, it costs nothing to make an AI slop image and blast it out on social media, so we're drowning in it.
but of course this means the entire market will dry up because no one pays students anymore