Oh good grief. I come from an evangelical background and I don’t know anyone who doesn’t wear make up (or if they don’t, it’s not because of a religious belief), doesn’t dance (I don’t, but its because I look like a goon when I do, not because I believe it’s wrong), my hair is short, and I’ve always watched movies. The list goes on. I teach ESL and two of my students are brothers from Guatemala. They seemed to indicate that they were not Catholic which surprised me, but now I see why by your post. These brothers were extremely nice young men, but I do not recognize them by your descriptions. They were even educated in those horrible “fundamentalist” schools you mentioned.
I am not saying they are horrible people. I have a girl who works for me who is evangelical. I love her and her husband. They respect me (although they are befuddled that I will drink a beer with my meal, or that we will go to parties and listen to Pink Floyd). I don't "push" things, but I will answer questions when asked (they thought I was from Mars when I told them I did not believe in a premillinial rapture). My advice is to go to church sometime with your two Guatemalan students and observe.
I think it is really cool that you do ESL. I worked with Wycliffe Bible Translators years and years ago, and am thinking of selling my business and maybe teaching ESL on a university level in Latin America. I would be interested in learning more on what you do, why you do it, and how you got into it.