I would hope and pray you are kidding here, but I fear you may actually be as ruled by fear as you sound in this post. Jesus told stories – we call them parables – where each character represents something it is not… unless you are actually going about on four legs, covered in fluffy wool, and saying “baa-a-a-a” to everyone you meet.
Our creativity is a gift from God, and used in a right way, it can absolutely bring Him honor and glory, and even win souls for Him – through beautiful works in the visual, performing, and literary arts. But a work of art does not have to be literal in order to represent the Truth of God.
Rejecting entire works of literature because they contain heroes with a title you randomly associate with evil is a very narrow perspective indeed.
It is not as though Harry Potter is some party animal who is doing drugs, sleeping around, using everyone for his own gain, and that sort of thing. The character is a troubled youth who has suffered ten years of abuse and neglect, only to discover he was born of a magical race. There is no such thing as a magical race, so this is clearly fiction.
HP goes on to struggle with right and wrong – sometimes getting it very wrong – and grows into a young man of virtue who is willing to give up everything, living in discomfort, hunger, danger, isolated from his community, to put an end to an evil force, even willingly laying down his life.
The story is a classic tale of good and evil – nothing more, nothing less.
If you also have trouble with LOTR, then it makes sense that you cannot see HP – or perhaps any fantasy fiction (such as The Chronicles of Narnia) – as anything other than a tool of evil.
Personally, I find this incredibly sad.
But I know Our Lord made each of us with specific gifts and understandings for His purposes and not our own. I work in the creative arts, and use those gifts to bring glory to God. Perhaps Our Lord needs you to do things that are more concrete and less immersed in creativity and imagination.
Interestingly, I’m writing a novel this month (participating in NaNoWriMo for the first time!) and it has some fantastical elements in it. I wonder if you would be able to appreciate the story as a morality tale, or if you would just see dragons and condemn my story because the dragons aren’t “evil” and the main characters aren’t trying to kill them (a la St Michael).
God bless us each in the work He has given us!