Initiating an Atheist movement in a religious country

I'm a student in South Africa. I was raised very religiously(Dutch Reformed as most of the white population). The country is rife with Christian religion mostly. Especially lately with the black population, which is unfortunately, usually very poor and accepting religion as the ultimate freedom.

I believe this is a very detrimental movement to the future of the country. I have had a dream of initiating such a movement, especially in the younger communities(in schools etc.), ever since I accepted reality.

I do not know a SINGLE atheist. Not a single one. And I'm seeing a movement, more and more, to fundamentalist Christianity.

What would be a start/launching point to starting such a movement, and would it be advisable? Both here, and in other more religiously focused countries.