Nonsense.  People are still free to say the pledge (you just can't force them to - some religions, like JW and Quakers, object to swearing oaths).  Fourth of July still has fireworks, parades and picnics.  No one has banned Christmas, & if you want to wear a hair shirt you are free to do so.  Only people I ever heard who actually objected to Halloween are a bunch of killjoy Christian fundamentalists.  Who are, ironically, the same people who once banned Christmas (17th century Massachussetts, look it up)