Research indicates that atheists are not as happy as Theists?
I agree that suing to get religious symbols removed from government institutions fuel the stereotype. But any challenge to religion does. Atheist are "angry" everything they fight to maintain the wall of separation.
This could be that few of the mainsteam western religions are particularly tolerant of atheism in any way shape or form they reqire totalitarian comitment, and as such atheists grow up with labels of "misguided" "uneducated" "uninformed" or blame is laid at the feetof the parents or media, government, technology or anything else apart from the asshattery that the atheist has interpreted their religion as,
It seems that the fault is with the atheist and not with their religion. so at which point should we be happy? it wasn't long ago that it would have been impossible for me not to have a religious ceremony upon death. WHY? is it a case of playing the numbers a la Pascal, don't care, my instructions on death are simple, medically harvest what you can and if the family wishes a grave marker it is to state atheist (although I came up with a few dirty or sily jokes)
you also have to appreciate that atheists are not labouring under any misconception of life after death, so we probably take our mortality a little more seriously, we also get a little

off when religion causes disputes ranging from individual spats to full blown wars. to me your religion and belief is as relevant as which series of star trek you prefer, ultimately pointless but we still have to live with the crap you create (personally I prefer blakes 7)
No secular countries government should make concessions based on religious faith apart from either outlawing practice due to public safety / morality (oh shut up the atheist can't be moral crowd)
Atheists are considered "Angry" the moment they question an article of religion, however attempts at imposing religion upon us or enforcing laws based on faith is ok?, seems we have an awful lot more angry fan boys than angry atheists.
and yes I am one of those mouth frothing peops that you hate, just offset my singularity to a portion of the frothing fundy hordes of any other religion.
bite me, not going to play nice any more