I think some stereo types about mudcatters are being reinforced here.The ones about over opinionated people trying to put others down because they think some thing slightly different. I thought flaming others religions would be against some sort of rules, it would appear not.
In answer to the question, I wouldn't expect too many wiccans or witches too be worried about schools banning halloween dressing up in the USA. Anything to help bring a holiday back to celebration, rather than spending cash, is likely to be appreciated. However, if the cause were some dodgy Christian group acting in an underhand manner then that is a cause of concern for many.
You know guys, its a party. If it has meaning to some people, why worry about telling them they're crazy? Why not just relax and enjoy it? Oh, I'm sure you can come up with a million reasons. Because you're like that, aren't you.