If a (human) artist studies the art of some other artist, and then produces new art in the style of the original artist, is that copyright infringement?
If a band writes songs with influences and style of the Beatles, is that infringement?
If a writer reads all the works of an established author and writes a new work in the same writing style as that author, is it infringement?
If a journalist reads and learns the editorial style of the NYT and writes articles in a similar style, is that infringement?
If yes, then AI is also infringing. If no, then AI is not infringing, surely?