You're using the fact that all are ideologies to attempt to smuggle in the connotations we have with "religion" and apply those to atheism and materialism. Examine those connotations directly and you'll see they don't sensically apply. For example: religion requires faith without evidence, materialism and atheism do not. Almost all religions make demands on the actions of their adherents, atheism almost by definition does not, except as in that as a category defined by lack of belief, those in that category won't believe in supernatural powers. There are legitimate semantic boundaries here, and attempting to blur them is only useful if you're trying to wage a war of connotation and emotion, not if you're trying to argue in good faith or build a good model of the world.