Obviously you and I have different meanings to the word "religious".
By "religious" I mean someone who has a real relationship with God and is trying to follow His commandments. And I say this in a non-sectarian way. One of those basic commandments which is extant in every religion in the world, including Buddhism, is the Golden Rule - Do Unto Others As You Would Have Them Do Unto You, or a variant thereof. It is crystal clear that fiends like Hitler, Jim Jones and any others who bear some trappings of religion or carry holy books or make claims to be religious aren't religious at all, if they advocate or cause misery to others.
By "religious" you obviously mean something entirely different, not sure what.