Morality doesn't exist without God.
Which of the many gods? Why are those traditions written and interpreted by humans then? Denial that empathy and ethics are a very human thing, not necessarily tied to religion. But authoritarian control and exploitation groups tend to manipulate with "morality". As with the rest of human ethics, there's the good and the bad. Good: universal golden rules like loving others. Bad: according to Jesus, you shouldn't promote bigotry and libel against others, you shouldn't judge them. You violate what true Christians should do and be about (no true scotsman deserved). Bad: hypocrisy like this. Bad: lies like this.
The value of human life becomes completely arbitrary.
Like claiming that embryos are infants, but that gun proliferation should continue despite it resulting in school shootings? Like the Inquisition? Like slavery? Women subjugation? Life can certainly be cheap under religion. Some higher ethics like humanism consider human rights more seriously, apparently.
To an atheist there isn't much difference between hugging a person or strangling them to death.
Evidence? It sounds like frivolous libel to me.
It's all about their own self interest.
For some reason this makes me think of Trump, a self-professed "Christian". It also makes me think of cult leaders and predators profiting from patriarchy in churches. Of emperors and kings playing "God" and wanting to justify their authority and actions by claiming to be divinely appointed, twisting scripture, etc. I'm sure that some atheists are awful people too. Your generalization appears to be frivolous.
My morality stems from the Creator.
So you claim that this kind of lying spam is justified, that supposedly, God told you and wants you to be an asshole? Tainting your religion, so that people witness its fruits of irrational bigotry.
You're amoral behavior system is based on fear of punishment and pain.
You appear to be projecting religious doctrines of fear and control. Like threats of hell, or peer pressure like shaming and shunning. Or persecuting people that you consider to be "heretics". There's no fear of divine punishment when understanding that humans create their deities. I was raised in a cult. When young, I used to fear demons. Today, I know that they don't exist.
I abide by morality as I am grateful to God for life and love all of God's creations
That's elitism and pride. Translation: "I'm good, I'm better than you are."
Atheism is a belief system in its own right.
You could call non-belief a belief system. You could call the reliable knowledge discovered by science a belief system. In the world however, there are facts and opinions, those are not equal. An origin myth is different than knowledge discovered studying the natural world that rests on strong evidence. For an atheist, there simply is no evidence for the existence of deities, it's just a realistic constatation. Then they can stop ruminating deceptive philosophy forever, to focus on the practical and real.
It was their atheism that enabled these people to murder millions to achieve their goals.
The Inquisition was atheist? What about the KKK? The colonisation of the Americas that also included atrocities? Some claim that Hitler was atheist, but that is disputed by evidence showing that he was Christian. Although some neo-nazi movements are Odinist, most are Christian.
[...Most of the people on Digg.com] are atheists until graduation. It's part of their manufactured teenage rebellion.
Most teens experience it, it doesn't need to be fabricated. Development leads to a need for independence. Teens also see that their parents are not superhumans and that they can be wrong. At 12, I knew that the cult I was raised in could never be "the truth" and "God's channel" it claimed to be.
Once they grow up, get into the real world, start families, they'll develop a more encompassing belief system than their egotistical, primitive atheism.
Where I live most are of Christian tradition but are not practicing. It's a secular society. Some are atheists, some are new age hippies. Many have families. Your claim that families need fundamentalist cultish Christianity of the type you are pushing is simply false. It's possible that you don't want to really grow up as an adult, that you still need to be dictated what to think and what to do and not do, like a child. That you're not mature enough to make your own decisions and accept responsibility for them. Just let other people grow up. It doesn't mean that they'll become atheists, that's a minority.
To an atheist killing is wrong only if they decide that so for the current moment.
The same for Christians. A murderer is a murderer and they can resort to any justification they like. Afterall, Christians can kill and then ask for forgiveness. It could serve as a justification to avoid facing the real implications of their crimes.
Atheists can only be amoral.
The onus is on you to prove that. It's been debunked as a lie above. You should stop lying, if you believe that a god will judge you for that. Like many fundamentalists, it's also clear that you're mixing up the non-practicing, the agnostic and the atheist together for your "atheist" straw men. Since the religious cannot provide actual evidence that their favorite deities exist, there's always agnostic people, it's a very reasonable position. And obviously, atheism is not the evil you're trying to make it to be. That's fabrication.