I'm an advocate of coexistance, and beyond that, respecting each person's spiritual beliefs. Raised in the A of G sect of Christianity, I never believed everything that was told/taught to me. For instance, the drive to get out there and save everyone you can just never made sense. Others' spiritual beliefs that differed than mine, were no less a conviction in them that beliefs were in me. Who is to say what works for me would work across the board for everyone else? Who is to say that what I believed was absolutely the only truth out there?
Then when considering Christianity, one must also consider the numerous sects within that religioun. All believing different things than the next. All believing in different criteria that brings and maintains salvation. Who is the say what is the absolutely correct sect of Chrisianity? In the end, it always seemed to be about fear (and money).
I think there is much an individual can learn from many religions and different faith beliefs. If one believes it's all about the destination (and a destination that there is no proof of existing within any religion), then perhaps choose a belief and stick with it. and at least leave others alone with theirs. But for me, it's about my life's journey, from Point A (birth) to Point B (death). Everything in between is what I expect to be judged on when I finally get to whatever is beyond death, if there is anything at all. If I can take my personal spiritual beliefs, and add to them what I can learn from others, then isn't that going to enrich my journey and get me to a better place when I near the end? I believe it to be true.
So today, while I would say I have spiritual beliefs based in Christianity, I would also have to add that I am accumulating spirituality when I learn from others' beliefs, and really listen in my heart, and that just adds to my spiritual journey.