What is the deal with people and Hecate?

I've been trying to figure out what is the big deal about why people have this thing against Hecate. Hecate was originally connected to Persephone and only later was she connected to sorcery, which I think is all because of Circe. So why is it that Hecate was prayed to for protection against Witchcraft in ancient times and yet the church has connected her with witches, like they did with Artemis. I would really like to know and no dumb answers from Christians that don't know anything about Hecate.