Right-wing Christians are obsessed with sexual deviance.
It is how the whole thing began (Adam and Eve eating forbidden fruit analogy), and sexual deviance pervades Christian culture and is seen as a strength in Christian leaders (why they love Trump, or defend pedophile priests).
As such, they see sexual deviance everywhere, lots of places where it doesn’t exist, but they imagine it must because it’s an obsession, fuelled by anger, in every spare moment of their thought.