To justify Christian morality because it provides a foundation of morality, instead of showing the necessity of Christian morality from the truth of Christianity, is a very dangerous inversion.
Theism is so confused and the sentences in which "God" appears so incoherent and so incapable of verifiability or falsifiability that to speak of belief or unbelief, faith or unfaith, is logically impossible.
Thought that is silenced is always rebellious. Majorities, of course, are often mistaken. This is why the silencing of minorities is necessarily dangerous. Criticism and dissent are the indispensable antidote to major delusions.