I'm curious as to how you'd differentiate that from atheism and/or non-theism.
I see a lot of overlap between those words, and I'd like to hear your take on what they all mean, if you don't mind taking a moment.
You're absolutely right there is a lot of overlap. I'm like a militant atheist; devoutly anti-religion. An atheist is someone who simply doesn't believe in [any] God or creator. An Antitheist is the same, but holds the belief that religion is not only false but also damaging to the human race, and to our advancement as a species.
I find the entire notion of it utterly absurd and won't hesitate in pointing out the absurdities any time I see it necessary. I lose a lot of friends on Facebook with my outspoken nature. For example:
People will post things like "pray for Cancer sufferers" (all that sort of rubbish), and I'll point out that if they believe in God enough to pray to him for such things, then they should accept that God - being omnipotent and all - is the reason people have cancer in the first place. Clearly cancer for these people is part of God's plan, so why bother praying? If God didn't give them cancer, then he isn't omnipotent (and thus God doesn't exist to begin with).
I have a disabled child who attends a special needs school. This school, like virtually all in Northern Ireland, is a Christian school - they have Religious Education, religious assemblies, celebrate Christmas by having nativities and all that garbage.
Anyway I wrote a letter to the school once, telling them it is shocking that there are children going to this school who are severely disabled, are in wheelchairs, some have terminal illnesses, can't remotely think for themselves and need 24/7 care. Yet here in this school they are taught that they are
born unworthy human beings, sinners, and must beg forgiveness from God and get down on their knees (where applicable) and give thanks to him their entire lives. This is exactly what Christianity teaches us all: "born sick and commanded to be well" as Hitchens put it.
It's shocking and disgusting. Of course I didn't get a reply.
But that's religion for you; no scruples, no shame. It's a total farce. As an Antitheist I'm not just a non-believer, but a vocal critic of organised religion in every form.