No, Steven you are neglecting the word belief. The definition of delusion demands incontravertable evidence to the contrary.
The statement of Delusion assumes then that there is incontravertable contrary evidence. That God doesn’t exist so come on lads and produce it.
It seems your stupidity knows no bounds: nobody here on the atheist side of the fence is attempting to show that 'God' doesn't exist, especially since 'God' is an incoherent claim and, as such, there is nothing of substance to engage with in the first place.
I did, however, suggest that the core notion in Christianity - that Jesus was dead for around three days but didn't stay dead - has incontrovertible contrary evidence in that there are no known substantiated cases of this (ask any undertaker) - therefore it is reasonable to conclude that the 'Jesus was dead for a while and then wasn't' claim is most likely a false belief.
If you want to claim otherwise then on you go: 'God' is your claim after all.