Should Halloween Be Banned...Forever?!

In the news "School Cancel Halloween" it happens more every year. Halloween gets re-named "Black and Orange Spirit Day". People say Halloween in not "inclusive" enough. Notes are sent home with a list of culturally unacceptable costumes or a request to not wear a costume at all. When exactly did a day when kids got dressed up as a witch, cowboy or superhero and go out Trick r' Treating become so offensive?