I never really questioned my self-identification as a Christian until I came out of the closet as a bisexual woman. The rightwing Christian agenda that opposes and condemns gays, lesbians, bi, transgendered and all others who don't fit into "God's perfect plan" of heterosexual marriage really alienated me big time from affiliation with Christian community. The belief that sexual minorities can be "healed" through a relationship with Jesus is absolutely absurd. There's nothing to heal. Sexual diversity is part of the natural order.
A big part of the issue gets back to how one reads & interprets the Bible. I don't interpret the Genesis creation stories as if though they are history and science texts. If one reads the Adam & Eve story as though it records historical facts that serve as the basis for social science, it is logical to conclude God ordained that women be subject to men and that the purpose of marriage is procreation and therefore a female is the only helpmate that might meet a man's need for companionship and intimacy.
For a very long time, I interpreted the Genesis creation stories as myth, and by "myth" I mean a specific literary form that is intended to convey a very deep truth about the human condition. That deep truth, as I understand it, is that humans beings are separated and cutoff from their Creator. Salvation theology says Jesus bridged the gap between creature and Creator through his incarnation, death, and resurrection.
Now I question the basic assumption that human beings are separated and cutoff from their Creator. This belief explains a lot about why humans suffer, why there is evil in the world, and why we die. What I have learned, however, is that there are other equally plausible explanations for suffering, death and injustice. By questioning my basic assumptions about the nature of the human condition, I am forced to rethink the meaning of Jesus' life and death.
None of this rethinking and examining of my core beliefs is an easy thing to do. In fact, it scares me a lot talk about where I am at and how I got here. I've been conditioned pretty heavily with the fear and guilt thing. But this is honestly my faith journey as it is at this point in my life. I don't have all the answers to mysteries of existence, and I'm OK with that.