Earlier quoted context omitted.
I am not sure secularism is synonymous with atheism. I am pretty sure secular policies would be avoiding advocating or prohibiting for atheism just as it would for any other form of views that fall into religious or faith beliefs.
> Secularism is the principle of seeking to conduct human affairs based on naturalistic considerations, uninvolved with religion. It is most commonly thought of as the separation of religion from civil affairs and the state and may be broadened to a similar position seeking to remove or to minimize the role of religion in any public sphere. That's the introduction from Wikipedia, which matches my understanding of the…
> Secularism is not necessarily antithetical to religion, but may be compatible with it.
Generally applied to civil affairs means that it is not inherently interested in minimizing religion in personal lives.