First of all it certainly isnt being suggested by me that people dont know why they disbelieve in God. As a matter of fact Ive given reasons that are absolutely fundamental to disbelief. So of course people know why they disbelieve, and no disbeliever needs to be patronised with the condescending pronouncement that People should know why they disbelieve in God, which, in the vernacular, is stating the bleedin obvious.
(The disbeliever, however, does not have to give reasons for the disbelief other than in reply to a theists arguments.)
But it begs the question because it implies that the assertion God exists is to be accepted unless and until unbelief is justified. No, its for the advocate to demonstrate the truth of this central claim and the assertion isnt safe in the absence of coherent objections. On the contrary, despite the passing of millennia, Gods existence is still just as controversial, and thats not because of the success of sceptical objections but because of the failure to prove the truth of what is claimed. So that burden is still borne by the advocates, despite the subtle attempts to shift it elsewhere that are misconceived and trivial.
Thats nonsense! It is about truth!! The central claim that god exists is a proposition. If it is not about what is the case then its about nothing at all! God exists is either true or false.