let me quote a former athiest turned thiestic apologist:
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Agnosticism, properly defined, is the ‘withholding of belief’ in God; that is to say that one simply does not know. The problem with this position is instantly recognizable: When asked the question; “do you believe in God?”, the appropriate answer could not possibly be “I do not know”, unless we are dealing with someone who has either simply never considered the question, or is not aware of the only two appropriate answers; ‘yes’ or ‘no’. And that really does lie at the heart of the whole agnostic position. It is either a state of complete confusion or an epistemic vacuum- insanity or ignorance.
....Assuming that one is both sane and understands what is meant by the word “God” (as most people do) then there is no conceivable manner in which one may reason their way to the empty state of non-belief that agnosticism supposes. Please note that we are using the term ‘non-belief’ in its actual sense of “not believing either way” and not in the modern-day atheist perspective as the negation of a particular proposition.[149] Non-belief in its proper sense is the same as saying “I believe nothing regarding this particular question”. But that is as useful a statement as no statement at all, since the subject of the statement itself is “nothing”, which does not exist. A person can only believe “nothing” about something which he knows nothing about; like the Mursi tribesman and the mental patient. About anything of which we are aware, however, we have beliefs whether we like it or not. If those beliefs concern the physical or metaphysical existence of some thing ‘X’, then those beliefs can either be positive or negative; we confirm their existence or we deny their existence; on faith, not on certainty; we lean to a positive or the negative response to any question which we consider seriously. Atheism and theism are thus asymmetrical responses to the same question; “does God exist?” If one is believed to be true, the other is believed to be false and vice versa. There is no in-between. Hence what we mean when we say: “agnosticism does not exist. In fact what we find in reality is that the majority of people who identify as agnostics are actually inclined toward one belief or the other, whether or not they prefer to acknowledge that belief. The philosopher Michael Ruse, for example, identifies as an agnostic, but it is almost certain from his written work that he is not inclined to theism and therefore, by exclusion, must believe that atheism is true and that theism is subsequently false.
Bertrand Russell, no less, said;
“I ought to call myself an agnostic; but, for all practical purposes, I am an atheist.”[150]
”.
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above quote from Jinn Bo, illogical atheism