it is absolutely daft in my opinion for anyone to say that atheists don't have a faith position. of course there is no god involved in their worldview, but it is a faith position anyway. they have faith, since , despite the observations of observable science , they believe that everything came from nothing via no one, and furthermore they have faith [or maybe desperation !] that science will one day account for such miracles without a miracle maker.
the "against God" definition is rather apt in many cases. the hateful, foul and aggressive lanquage used by the resident atheists here, would end them up in court if it was used against homosexuals ,imo.
the idea that Jesus may not have existed seems to me a very extreme position that discounts all the evidence. of course, based on the pre-conception that only scientifically attested phenomena is allowed [unless its origins of course !] most skeptics, I suspect, claim that the early Christians exaggerated his power and person.
as usual, there is the charge that Christianity is dangerous, but I should like to see the reasoning that evidences believers in Christ as being any more dangerous than atheists.
mind you, the message of sin, judgment, or salvation by Christ may well be dangerous to the atheist faith position !.