Well, that's up to you, then.
However, Rowling is a good writer. She really is; maybe you can't appreciate your story, but you have to be blind not to see the complexity of the structure.
It is a little frustrating, though, that people don't love the book for the quality of writing- they love it for the plot. This disappoints writers, whose main goals are to become the next greatest thing in literature, because the fact is that stories like Harry Potter usually fade with time, while underappreciated stories like the Great Gatsby become big.
They love the plot of the "chosen one." They love magical realms, and if you're not big on fantasy, that can be difficult to understand.
I personally like Harry Potter. It's well written, and I'm happy to see that a story can be appreciated beyond the blind structure of the modern novel. You can see a sort of lyricism in certain books that you can't see in many others. Others that become big, despite little planning.
Rowling spent ten years, at least, planning those books. So, I'm happy to see that it's turned out well for her.
In the end, though, your tastes are YOUR tastes. Nobody has to tell you what YOU like, and nobody should ridicule you for not liking something. That is, they shouldn't do it unless you direct cricism in their direction.
I respect your view, though and can understand how you wouldn't like it.