It will have no impact on morality because few people actually derive their morals from a religion, even if they claim to. Religions contextualize and validate

It will have no impact on morality because few people actually derive their morals from a religion, even if they claim to. Religions contextualize and validate morals that adherents hold regardless of their active participation, and some religions even take this premise and run with it (e.g. that people have an innate instinct to do what's morally right which is in tension with their innate instinct to do what's wrong).