Who are you talking to? You are seeming to reply to thoughts not much in evidence here. Christians who have reservations about HP do so from the perspective of the Bible's consistent stance against witchcraft (Deteronomy 18:10-11). Did your Christian parents ever explain that to you?
Having said that, though a Christian, I don't oppose HP for that reason. HP books don't hold out witchcraft as options for people, since we're all "muggles," by HP-definition, and not capable of magic.
Though I'm reading through them, my reservations are these:
(1) They're not particularly good writing. I hope you supplement your HP-reading with JRR Tolkien, and CS Lewis.
(2) While you go on about Hermione (probably my favorite character -- though maybe Hagrid), they're not called "Hermione Granger and the...." They're about Harry Potter; and it's not for nothing that Conrad Gempf wrote a good essay called Harry Potter and the Habitual Liar. Read it.
(3) What child read's the Bible? This does make me wonder -- a little, not harshly -- about your upbringing. My kids do, and have, for one thing. My six-year-old has memorized Bible verses A to Z, and loves to read his Bible. My ten-year-old has read the whole New Testament, and is up to 2 Samuel in the Old; he has a great time with it. And those are just my young ones.
I don't disagree with everything you say, but I don't think you really understand some of the reservations some people have with Harry Potter books.
Oops; read's = reads