You didn't provide a concept, you merely claimed that, "The word "atheism" is also a noun. It represents an idea, a concept. People share this idea, this concept and they become ATHEISTS."
I asked you what idea, what concept would that be? Atheism does not represent an idea or a concept.
You also stated, "Some atheists have a very complex and complete personal philosophy which they share with other people."
No they don't.
OMG. Are you kidding me? This is your big question, your big challenge?
Main Entry:
athe·ist
Pronunciation: \ˈā-thē-ist\
Function:
noun
Date: 1551
: one who believes that there is no deity
Main Entry:
athe·ism
Pronunciation: \ˈā-thē-ˌi-zəm\
Function:
noun
Etymology: Middle French
athéisme, from
athée atheist, from Greek
atheos godless, from
a- +
theos god
Date: 1546
2 a : a disbelief in the existence of deity
b : the doctrine that there is no deity
I can't believe I am having to be so elementary about this.
Atheism is the doctrine that there is no deity.
Atheists share the doctrine that there is no deity.
The doctrine that there is no deity by it's very nature impacts a person's other beliefs, philosophies, and actions.
Many people - from political leaders artists to movie stars to the postman on my street - share a common belief: atheism.
Some of these people in the past have joined up with other like minded people with similar goals and formed (gasp) GROUPS - groups in which at least one common denominator and motivator is atheism.
These groups have had different goals - some noble and some not so noble. Some of these groups of people, people who share the common denominator of atheism, have committed crimes against humanity - atrocities, genocide, hellish abuses of those who do not share their beliefs and goals.
Of course, groups of theists and deists have done the same thing. I'm not saying one category is more guilty than another. But to try to wiggle out of the
truth that groups of people who are atheists - whose disbelief in a deity has shaped their philosophies and goals - have both the history and potential to commit atrocities at least equal to those of other humans , who are theists and deists and agnostics...well, I think the endeavor is not only ridiculous - it's actually pitiful.