"‎Atheism, Humanism and Rationalism are not Secularism.
Many of the founders of secularism were religious. Indeed, back in the days when unbelief almost certainly existed but was not mentioned in polite company, it was often religious minorities afraid of being overrun by the majority who fought for a secular system of government that would give them religious freedom and protect them religious discrimination. When I was growing up, it was the Jews in my town who fought the yearly attempt by Christians to erect a nativity scene in the town square at Christmas time.
We need to remember this and to understand that we cannot win and will not win until we stop saying or insinuating that atheists, humanists or are the only ones who came up with the secular concept. Or that atheists, humanists or rationalist are the only ones able or willing to defend it. Atheism is a personal belief system. Humanism is a philosophy. Rationalism is an epistemology or theory. Secularism is a form of governance designed to ensure that Australians of every and of no faith are free to live their lives and to raise their children in accordance with their beliefs, and to not miss out on life’s opportunities because of their personal faith. Who can, does and should support a secular state? Fair-minded Australians of all faiths and of none, that’s who."