I’m with you I have grown to hate Halloween.
Here’s my take on this: Participating in Halloween is a pagan ritual to which Jesus said not to participate in pagan rituals. We are also not supposed to perform sorcery, or worship other deities or spirits other than the Lord. Halloween also encourages sinful behavior (drinking to excess, hording things you don’t need like candy, lasciviousness during parties, etc.); all things that lead to sin if not sinful in and of themselves. I would also argue that the way modern society practices Easter and Christmas are also pagan based and should be avoided.