It does somewhat. I can say a Flying Spaghetti Monster, an entity that can be defined, and therefore knowable, cannot be realized. I can also say it doesn’t exist since I have defined it.
An entity without definition doesn’t exist. How then does an atheist put the theist in atheist?
An atheist can attack the concept itself and say God is unknowable, meaning without definition or undefinable, and can not be realized, meaning evidence for its existence can not be obtained observed.
Language again, a- is just a simple negation logically not theist whatever theist is.
Again the anti confusion which connotes against more than just not.
An atheist can do a lot of things just as a theist can, but declaring things about gods is not in itself atheism,.
Theism is belief in a god however that god is defined. A-theism is lack of belief, irregardless of what one may feel about the concept of a god.
Personally, a god might exist, but I don't think about it except when here as I have found no reason to contemplate one considering lack of any evidence for any of the ones that have been posited by others. If it exists and doesn't effect me, then it is a don't care.
As for the perceived attacks, they are not, they are just intellectual sparring like in high-school debate where you are assigned a position and expected to argue it. I am a failed Unitarian by upbringing while my sister has gone California in her religious ecumenism and my brother has taken on many of the attributes of his wife's Vietnamese Christian-Buddhist upbringing though I think she sees it more as a teaching than a religion. I think he is more a theist than she is.
Anyhow, for now it is a glorious day outside that I will enjoy for what it is whyever it is.