Logical fallacy, LG - more precisely this is a red herring.If you disagree, feel free to explain the practical differences between one person who does not believe water exists compared to a person who believes water does not exist.
Practically they are the same - as in both people will live their lives as though there is no such thing as water.
But intellectually the two positions are very different, and that is what is this thread is about - so let's stick to that, shall we.
And on the intellectual side, presumably there is a concept being considered that has been labelled "water"...
The former has concluded that they do not have evidence of this concept to be able to say whether they believe "water" exists or not. They probably have such a lack of evidence to not even say if it might exist or not.
The latter has presumably concluded that there is sufficient evidence to say that this concept just does not exist.
The question is whether one believes god exists - not merely whether one lives their life as though they exist or not. The former is an intellectual position. The latter is a practical one.
So please do not try to go further with this logical fallacy of yours.