Defending Halloween is defending against those that pretend to be religious and would bring back the Salem witch trials book burnings, and the religious Inquisition.
Hypocritical sinners.
We follow God the person, Jesus Christ, and we reject religion.
When we put aside religion and its rituals, some things are easier to see.
For example, God telling us to obey him. God’s enemy trying to induce us to do the opposite.
This enemy doesn’t act in ways that are obvious.