Keeping religious beliefs private

I agree with this even though I seldom agree with Oliver Kamm:

Atheism is a philosophical position. I hold to it, and I regard the spread of atheism over the long term as both likely and overwhelmingly beneficial. But for cultures born of the Enlightenment, private religious belief is not so much an enemy as an irrelevance. What matters is that religion should not intrude into the public sphere. It must make its accommodation, however it chooses to get there, with modern mores, liberal values and secular education. If it won't, then it makes itself an enemy.