You're confusing New Atheism with just straightforward atheism. Atheism is simply the lack of belief in God or gods. As a rule, atheists don't subscribe to any sort of belief in any form of supernatural entities, and the vast majority expect proof of any such outlandish claims as "God flooded the entire surface of the Earth, saved two of any animal, then suspended all rules of genetics, space, and time to allow those animals to repopulate the earth in a couple hundred years, magically keeping a shepard family alive throughout".
New Atheism and its proponents - including Richard Dawkins and Jerry Coyne, for example - includes that stance, but also considers religion a serious threat to humanity, based on the history of the world and religion's starring role in all the hate, fear, war, and various atrocities throughout time. They are the loud ones you always hear calling for religion to be stamped from the earth, but bear in mind that it's not because of a hatred of religion, per se, but rather hatred and disgust of what religion always seems to lead to, be it massacres, torture, or genocide. And if you're honest, you have to admit that Europe's blood-drenched history is so bad largely because of religious conflict - the Crusades (not all crusades were aimed at Jerusalem), the Papal Schism, the Reformation and the slaughter it caused, the Inquisition, the Reconquista, the Yugoslav Wars and genocides...it goes on and on.
Edit: And before anyone thinks I'm giving other religions a pass, non-European examples include the entire ISIS uprising, the Taliban and its crackdown, the abominable treatment of Palestinians by Israel, and the entire Pakistan/India conflict, which has its roots in Hindus and Muslims slaughtering each other immediately after Britain freed them from its colonial control.
