I have been contemplating this issue (Is It Reasonable To Accept Christianity After Losing Faith in Mormonism?) because my LDS believing husband says that the arguments that I have against Mormonism can, without much altering, be used against Christianity in general.
Side note: My husband is currently angry with me for being such a disappointment to him regarding LDS church belief (while not acknowledging his long standing porn-addiction behavior as being a disappointment to me) and so refuses to have this conversation with me, so I am having it with you, my Internet friends.
I realize that a lot of people who leave Mormonism become agnostic or atheists because they feel now that all religion is a big lie, that they can’t trust the spirit to testify of truth, that they don’t want to get burned again, etc., but I don’t think that it is necessary to lose all faith.
The good, warm feelings that one has being Mormon are largely due to seeking God and goodness. Christ’s message is a message of hope and love. If one delves into Christianity and experiences the Christian churches in one’s community a whole new world can be opened up. I haven’t attended another Christian church regularly, but I have been a part of their MOPS program (a Christian support group for Mothers of Preschoolers held at various christian churches) , attended their special services at Christmas and read several books by prominent Christian authors. I have also purchased a lot of the Christian music which are very inspiring and uplifting.
In this way, I can keep my faith without having to believe in a prophet (Joseph Smith) who lied to his wife and his church community about polygamy in order to sleep with teenagers behind everyones back, while manipulating the young girls by promising them salvation for doing it.
At the same time that I plan on remaining a Christian, I am completely open to the idea of other faiths having truth and being able to find God. I will never be one to believe that I hold all the answers. I just know what feels good and right to me in my life right now. I think that as long as people are seeking for God and seeking to be the best person they know how with the knowledge that they currently have they are doing well. I also completely understand agnostics and atheists. I have had too many prayers answered to go in this direction, but I understand it and I do not judge these people, nor do I think they are amoral. Everyone has different life experiences and for the most part people make choices based on what they understand at the time.
For further excellent reading on the subject of accepting Christianity after Mormonism see this article and then watch this youtube video: