The views of Atheists and Agnostics are just as valid as anyone else's and are protected under our Constitution, as they should be. Be nice if they stood up to protect the views of religious folks in the same manner.
But their views are baseless and crazy - that's the problem. Why would I want to protect that?
Well, some are and some ain't. But even baseless and crazy views deserve protecting. As long as opposing views are protected, as well.