Right. When I was a kid in the 40s and 50s, we occasionally went to see spooky movies. We also went to see cowboy movies, Tarzan movies, etc., etc. By the time I came along, the Halloween costume n candy holiday was already with us. It had absolutely no evil symbolism in those days. It was a costume and candy day for kids. We could dress up any way we wanted, and it was usually like our favorite movie characters, spooky or not.
Few people who enjoy the holiday today have any idea of its origins and don't care. It's just a way for everyone to tap into the little kid inside who still likes to be scared...especially when we know the scares are not real.
Those determined to find evil in every corner or the too-tightly-wound may not understand how we can find such dark and disturbing images delightful. Maybe part of it is the creativity it takes to 'suspend our disbelief' long enough to allow the obviously-concocted scares to work their magic; maybe it's like 'whistling past the graveyard.'
Whatever it is, Halloweeniacs come together one night each year to let their hair down, to scream or instigate screams, to laugh and be laughed at...and to once again remember the heart-pounding excitement we felt as little kids building our courage to ring the bell on the door of a strange house....ready for anything....but getting candy.
And I for one hope I never outgrow that delight.