The funny thing is...I'm a weak atheist (not excluding possibility of a god but I do not believe in one - I won't be calling anyone wrong for choosing to have faith in a deity though). My husband is agnostic. We do not announce these choices in public.
A good lot of people simply assume that we are whatever sect they are. I've somehow passed for Baptist and Catholic several times - not sure how that happened. I've also been taken for a couple varieties of Jewish.
I find it extremely ignorant and telling when people voice opinions that atheism or agnosticism are, in any way, to blame for anything. What is truly to blame is the ignorance and intolerance from which those who are writing this drivel spring. I find this amusing because such intolerance is detailed and denounced as a crime, sin or fatal failing in just about any theology.
I personally think (that with regards to the whole trumped up religion vs science silliness) that people who believe that religion and evolution actually clash are the most hilariously stupid people I've ever been cursed with the knowledge of. Depending on the translation, even the Bible doesn't necessarily claim that creation was from nothing nor that it took only a week...nor does it claim to be a complete and definitive chronicle of it. It was ultimately written by humans and humans are, by any definition, imperfect beings.
There is room enough in this world for any and all tolerant people and tolerant belief systems. Those which are intolerant ultimately have no redeeming value and are the true cause of all of our ills.