Its rather arrogant of atheists to say they know with 100% certainty that there is no God,no possibility of an intelligent designer. At least and agnostic will be truthful enough to say they don't know. Of all the people who have believed in God down through the years you can say Im more intelligent than all of them and I know there is no God? Arrogant.
I always thought it was weird that atheists claim the term "skeptic" for themselves : p Theyre literally believing what they are being told, just not what theyre being told by creationists : p
The only group that could be considered "open minded", "free thinking" and "skeptic" (Im using all these terms in a secular way) would be those who claim to be agnostic : p
Atheists have taken up a world view, which is entirely carried by faith. Theyll tell you "no theres no faith in athiesm, we rely on evidence", but there is no evidence to support what they claim, literally not one piece of it : p
They are really no different from creationists, other than they have taken the alternative view : p