Because it sure seems like they desperately want to be seen as a persecuted minority.
Persecution Envy
Sarah Cooper

Here is the conservatives’ persecution complex explained: It’s rooted in Christianity. Christian leaders preach that differing ways of life are “attacks” on Christianity: marriage equality, right to choose, “Happy holidays” and other “Christian” hot-button topics that get trotted out every election cycle for the express purpose of activating Christian voters.

As opposed to more rational ways of looking at differences of opinion and practice, Christians view these differences as attacks. It’s persecution to think differently.