Should we love Boromir, who tried to steal the One Ring from Frodo? Should we love Long John Silver, who tried to kill Jim Hawkins? Should we love Guy Montag, who burned books?
Satan is depicted in different ways in different parts of the Bible because he's a fictional character. In each instance, he has a literary function.
Yes, those functions are often misunderstood. One of the worst misunderstandings is thinking of him as an entity.
well put