Are Muslims Christians?

I fear I am leaning towards being a universalist. I don't think I'm all the way there yet, but the thoughts are definitely there. How can this be? I've always been taught that there's a special place in hell reserved just for universalists. After all, how are you supposed to feel self-righteous if you have no belief system that excludes anyone who doesn't think like you? But... it seems to be the only thing that makes sense.

Maybe the line in the sand - the line that divides non-christian from christian - is so hard to find, and define, because it's not there. Maybe there are only degrees of being Christian. Maybe when the bible indicates that christians will  become rulers and priests, it means that these people are the ones who have learned the most in this life, and are therefore worthy to be mentors to the others. Maybe this is the real meaning of the parable of the talents.

Does this mean that Muslims are Christian? Does this mean that any good deeds, done by anyone, all contribute to the kingdom of God, no matter who they are? Is this what Jesus meant when he said that whoever is not against you is for you. Does this mean that the sadness of the story of the rich young ruler is not that he failed to become a Christian, but that he missed an opportunity to enter into the true, and complete, kingdom mindset? That when he will be shown the error of his ways, during the final judgment, that even then he will reject the mindset of the kingdom - a mindset of self sacrificing love - because he is used to having too much?

Was Gandhi right when he said that he was Muslim and Hindu and Christian and jew and Buddhist?

I don't know. I think the jump from evangelical to universalist is too much. I think I'll go out and force myself to feel smug about my self-righteousness until this feeling goes away.