People just don't understand the meaning of "atheist".
Exactly! If people ask, I don't identify myself as an atheist since there's so much stigma surrounding the word. If I call myself non-religious or even agnostic, it really softens the blow. From my own experiences, folks seem to think that atheists "hate God" or "are in rebellion against God."
I don't kow if that 3% figure is accurate either, I thought it was ~>10% atheists in america.