Are Atheists Blind?

I have tried to debate with atheist on this forum, and I don't know if its me or not, but I find them very unreasonable.

They do not seem willing to consider even for a moment that God may be real.

They seem to have an attitude of arrogance about them. And I wonder, could some of them be evil, because sometimes they give me the shivers.

And then there are those that get me a tiny bit angry. Then I want to smite them.... which of course is wrong... I should turn the other cheek.

I'm beginning to think that some of the atheists that come looking for debate maybe under the influence of Satan.

Are these people blind to God's truth? because when it is put right under their noses, they just don't see it.