I think Christians can evangelize and be holy and separate without having to involve themselves in a pagan worldly holiday (i.e. Halloween) that promotes the sin of witchcraft, murderers, mindless death, demons, etc.; I think Christians do not like to think about how God required witches to be put to death in the Old Testament. But it happened. Granted, in the New Testament, we are to love and do good towards our enemies, but the point here is that Halloween is a glorification of evil. Why would God be in favor us supporting a day where people glorify witches and evil? It’s silly. No offense to anyone here, but those Christians who do not see it are simply worldly focused and they are not seeking to pick up their cross, deny themselves as Jesus said ~ IMO. I know. I used to be in their shoes and think the same way. But at that time in my life, I would consider my focus to be concerned more about myself, and my pleasures, vs. truly seeking God and making Him happy in this life by my thoughts, and actions (According to His Word). In other words, they want Jesus their way, and not on God’s terms.
I don’t think Christians should even hand out candy or open their doors to give tracts on this day because it would be an acknowledgement to the practice of such a day itself (Which is a day of glorifying evil). This is a big one. Does the Lord want us to glorify evil and darkness and be a part of the world?
“Love not the world, neither the things that are in the world. If any man love the world, the love of the Father is not in him. For all that is in the world, the lust of the flesh, and the lust of the eyes, and the pride of life, is not of the Father, but is of the world. And the world passeth away, and the lust thereof: but he that doeth the will of God abideth for ever.” (1 John 2:15-17).
Side Note:
Believers can give tracts or tell others about the gospel in other ways on that day that is not tied to the holiday. They can just give the tracts to a store clerk, or somebody in a store parking lot, etc.; They can love their neighbor in other ways without having to involve themselves in the holiday practice itself. But the draw of this world is strong. To break away from this world is difficult for many. For some, it is impossible, and thus they simply will never see what we are talking about here.