There's a huge difference between struggling with sin (which we all do) and flaunting it.
If an adulterer entered my "tent" wanting to redefine important American institutions such as marriage, the family, religion, education, the military and youth mentor groups BASED ON HIS CHOSEN BEHAVIOR, you can bet your bottom dollar he wouldn't be welcome ANYWHERE around this conservative.
Not all homosexuals believe in homosexual marriage, gays in the military etc...