This process is akin to how humans learn by reading widely and absorbing styles and techniques, rather than memorizing and reproducing exact passages.
Machine learning algorithms are not people and are not ingesting these works the same way a person does. This argument is brought up all the time and just doesn’t ring true. You’re defending the unethical use of copyrighted works by a giant corporation with a metaphor that doesn’t have any bearing on reality; in an age where artists are already shamefully undervalued. Creating art is a human process with the express intent of it being enjoyed by other humans. Having an algorithm do it is removing the most important part of art; the humanity.