The way it is celebrated in this country is not Christian. As a practical matter, it is celebration of evil and evil spirits, not good (unless you want to argue that people walking around dressed up bloody murder victims has some connection to good).
The way many secular people celebrate it I won’t argue with you. Truth be told, I find their preoccupation with slaughter and gore completely vile.
But you’ll find a different attitude altogether in the homes of many Christians who remember what the original day was all about.