Because to many, many self-styled Christians (more than would admit this), Christianity is supposed to be about tradition (first and foremost).
I am glad you guys are finding yourselves in a loving, unjudgmental place of worship. What church is it if I may ask? Is it Unitarian Universalist? I know there are some other open-minded branches of Christianity as well.
Love means never having to say, "Put down that meat cleaver!"