Christians claiming Atheism is 'evil' while also trying to claim a monopoly on morality. Get bent.
I'm an atheist, and as such, I totally deny the very concept of 'evil'. It's frequently attributed properties much like something akin to gravity and such, in that it's an actual force that can have an altering effect on the universe. Absolute garbage.
People can make choices in how they act totally outside the notion of religion or how it defines morality. Christians are quick to describe kindness, compassion, love, empathy, concern etc as 'Christian' values, and that's fine, however, I see them as simply facets of what it is to be a decent human being. There's no need for religion in order to have a positive, humane morality, and it really does irk me when I see it hijacked by religious folk as if they have some sort of monopoly.
Likewise with 'evil'. There's no such thing, at least, not in the sense that it's an actual independent force. If you want to describe actions that are in conflict with your morality as 'evil' then fine, but to me they just another set of actions decided by choice by a human being, or by accident by nature. There's no requirement to add another utterly needless degree of complexity by bringing god into it.
The suffering of children is unpleasant to the sensibilities of any normal human being. There's no 'evil' involved though. Someone, somewhere made a conscious choice that led to the child suffering, just as nature doesn't decide to be 'evil', nor is it propelled by a notion of 'evil' when a volcano erupts and kills a load of otherwise decent people.
If you need to cling to these concepts in order to be able to negotiate the world on a day to day basis, then I'd suggest you try giving atheism a whirl. It's enormously liberating not having to constantly battle with contradictions, paint yourself into logical corners, or attribute wacky, nonsensical human constructs to things that really aren't complicated enough to actually require any extra explanation in the first place purely in order to fit into your religion's description of the nature of the universe. It's actually reassuring once you accept that you are totally insignificant, the universe functioned perfectly adequately before you arrived, and will continue to do so once you're gone.