If you are a Christian -- or a person of any faith, for that matter -- your chosen religious lifestyle is protected by every conceivable anti-discrimination law in every state. You even get exemptions from some secular laws. And you can give tax-deductible donations to a church or religious charity engaging in political action, even the elimination of the rights of others.
Of course, the Constitution of the United States protects religious freedom. But what if we somehow had a winning popular vote that Christianity was no longer considered a religion? Just like that -- no more legal protections under the Constitution. Still would like some rights as a Christian person of faith? Just choose a different religion to believe in. Isn't that what you're always telling gay people ... just "choose" to be straight, and presto -- no more problems. Maybe you'd like to try that now.