If we look at this thread alone as the best common evidence, we already see that most of the "good riddance" type opinion is from the non-religious.
So far, the most religious intolerance I have been whitnessing is from the non-religious.
As for killing by religious people, look no further than ISIS, they are muslims killing muslims. It's not a question of religion here, and mostly never is. It usually is a question of politics.
Islam is not one religion, there are different movements, hence muslims killing muslims. It's religious intolerance against religious people. Muslims are being killed by other Muslims, who just so happen to have different ideas. Of course it is also a question of politics, but that's not the only factor that's at play here.
IS are also killing Christians in the Middle-East and other religions.
There has been much more conflict in this world between different movements of religion than religion vs. atheists. Suggesting otherwise is ridiculous. I don't see atheists blowing up mosques, churches or synagogues...