A-theism is generally understood to mean the confident proclamation that there is no deity. "Agnosticism has nothing meaningful to say" is, frankly, my point; we thought we could confidently proclaim the impossibility of a deity in the 20th century, and now we can not honestly.
As for the 'correct' conclusion that none is due, that is itself an awfully confident statement about a deity you know little about, even whether it exists. Some might consider the fact that we are left alone, rather than driven like puppets in some manner, to be a positive factor on its own, after all. You may not like that we are not handed a life of total goodness and light and luxury, or whatever your ideal universe looks like, but it could also be a great great deal worse.
As for the 'correct' conclusion that none is due, that is itself an awfully confident statement about a deity you know little about, even whether it exists. Some might consider the fact that we are left alone, rather than driven like puppets in some manner, to be a positive factor on its own, after all. You may not like that we are not handed a life of total goodness and light and luxury, or whatever your ideal universe looks like, but it could also be a great great deal worse.