AI art can require training a model, or a LORA for a model, which requires choosing a series of samples and annotating them for the parts of you want to incorporate. After that, writing a prompt can involve several paragraphs with the definitions of what you want it to output, with a series of iterations, followed by a personal choice of the output.
How is AI art a skill that is comparable to real art?
How is stacking 10 buckets of sand and letting them fall in an art gallery, comparable to real art? Dunno, but they call it that: "real art".
Art is a communication act that requires some sort of vision, intended to elicit some sort of emotional response in the receiver, and a series of steps to achieve that.
As long as there is a vision and an intent, the series of steps required to create art with AI, are comparable to any other series of steps conducting to the creation of art with any other medium.
For a rough estimate, you can compare the number and difficulty of the steps, and the effectiveness of the communication.
people generating entire pieces using AI and then referring to themselves as "artists" is honestly delusional and sad
Let me refer you to the aforementioned sand bucket... sculpture? or the renowned orchestral piece "A minute of silence", or paintings like "Black square", or more performative pieces like "Banana duct taped to a wall".