I think that its much more important to raise your children to think for themselves and formulate their own beliefs. Any fool can teach a child a religion but the aim should be to nurture them to find their own way and respect them for it (even if it might conflict with your own beliefs).
Whether they be atheists or polytheist they are equally able to live good fulfilled lives if they are given strong social responsibility and the right moral compass.
I dont see why there has to be friction between the believers and non believers - does it matter?
G