How do we as Christians deal with the guilt that we didn't do everything to halt the onslaught of atheism?

OKAY seriously now you need to stop with this whole Christians above Atheism. This is like the 5th or 6th one I've read of yours and now it's just getting annoying. Other people are aloud to believe in what they want. You cant push your believes on people because you want them to believe in what you believe.