Definitions do not exist as arbitrary scrabble rules to define a word. Dictionaries are tools, meant to inform other of the most likely meaning of a word within a given context. If somebody says, "I believe this, and it has this meaning." then contextually they are correct. It's like a legal contract, if you lay out a term and define the term, from that point on within the context of the legal agreement the term holds the meaning laid out by the lawyer.
So you are not arguing against any contextual argument laid out by modern respected atheists. You are literally arguing against a dated and biased use of the term designed by theists to label and stigmatize people that don't follow their beliefs. Only from the perspective of someone who believes in god, would a person "who had no need to believe in god" be viewed as someone who "denies the belief of god". The very important contextual difference is missed by the theist who would make such a claim. (not saying that you are a theist)
Dawkins lays out quite clearly his atheistic belief. Arguing against a form of atheism that is devoid of his contextual point, is arguing against nothing and nobody (well, maybe somebody, there's always somebody).
So you are not arguing against any contextual argument laid out by modern respected atheists. You are literally arguing against a dated and biased use of the term designed by theists to label and stigmatize people that don't follow their beliefs. Only from the perspective of someone who believes in god, would a person "who had no need to believe in god" be viewed as someone who "denies the belief of god". The very important contextual difference is missed by the theist who would make such a claim. (not saying that you are a theist)
Dawkins lays out quite clearly his atheistic belief. Arguing against a form of atheism that is devoid of his contextual point, is arguing against nothing and nobody (well, maybe somebody, there's always somebody).