Conscience: the inner sense of what is right or wrong.
Unfortunately, all branches of Christianity exert pressure on the non-believer to become a member by explicitly or implicitly using threats of going to Hell and separation from God after death if one remains a non-believer. However, rarely do they point out the Christian dogma of primacy of personal conscience (link)(link)(link) in deciding whether to remain a non-believer or convert to Christianity.
I was a Devout Catholic most of my life. However, as a skeptic (science-based thinker) since college in all but religion (funny how compartmentalization fools the brain), I finally had to accept that there is no objective evidence for any God, in spite of Christian claims on our reality. This conversion from Catholicism to atheism is what my informed conscience told me I should do.
Imagine what would happen if Christianity would emphasize this primacy of the conscience and also promoted informed critical thinking on religious claims.