I agree with not celebrating Halloween. However, if you’re going to be consistent Christmas and Easter have to go too. The origins of Christmas are in pagan winter solstice celebrations. Just about everything associated with the holiday, from the tree and yule log to gift giving, flows directly from pagan celebrations. Easter is much the same, its origins are in sex and fertility springtime pagan holidays. Thus the rabbits and eggs. I’m all in favor of ridding the church of all of these holidays.
In Italy up until recently, there was a) no Christmas tree, b) no yule log, and c) no Santa, and d) not really much gift giving? Halloween wasn't even heard of there.
These things you are finding fault with actually came from mostly Protestant countries--but for many many hundreds of years before that and really most everywhere in the world, the essence of Christmas and Easter and All Hallows was *going to Church* and having a great big celebration afterwards.
You can't just cherry pick these tiny insignificant aspects of a modern holiday--which up until recently weren't even widespread--and claim that is evidence of pagan associations. That's just insane. Especially since we know for a fact that Christians were celebrating Christmas and Easter when they were still a persecuted minority.
Remember what Tertullian famously said as he scoffed paganism: "What has Athens to do with Jerusalem?" Who harshly denounced pagan celebrations? Even HE celebrated Easter.