Subject: Atheism is a faith
Logically, you cannot have a "lack of belief in". What you have to do instead is "believe in the lack of" deity. If you want to be agnostic and simply say "I don't know if deity(ies) exist or not", then do so. It is easier, and better, to change your label than to try to change a definition all of us are using to try to communicate better.
This particular email is just incoherent nonsense. I don't think that the author understands the first thing about logic and only use the word "logically" because he thought it looked good. Of course it is logically possible to have a "lack of belief in" something. Every time you don't accept the truth of a claim, you lack belief in the truth of the claim. You might also go on to deny the truth of that claim and assert that something else is true, but you don't actually need to do so.
I submit that atheists are so busy trying to change the definition is because they do recognize that they are making a statement of faith, but don't have the courage to acknowledge it.
I submit that Christians like Lucas, ignorant of basic logic and philosophy, are so busy trying to change the definition of atheism and make it narrower because they need atheism to be a statement of faith in order to level the playing field. So long as atheism isn't a statement of faith (and, for most atheists, it isn't), theism and religion will be vulnerable to the charge that faith is an inferior means to truth than reason, logic, and critical thinking.
Christians and other religionists who recognize this have a very strong motivation to insist that atheism be defined narrowly and understood as a type of faith. If they can manage that, then they can argue that the atheistic faith is no better than the Christian faith (leaving them open to the challenge that the Christian faith is no better than the Muslim or Hindu faith, but I doubt they see that). If they cannot manage that, then they are forced to explain how and why their faith should be treated as better than reason and critical thinking - something they are quite unable to manage.
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