Protestants should your warn Texans of the Devil?

You are way off base on this. I am a Texan and a Shawnee Shaman. If you look for evil and negativity in life, that is all you will ever see. That is no way to live life. So this answer does not belong on the Society and Culture (Mythology & Folklore) section. Try placing it under the Religious Section or Who Gives a Hoot What You Think Section.