Why are they asking, if they are not a believer?
Because it is what they are told. "you're not one of the chosen? too bad, too sad." I've heard a number of atheists ask why they deserve Hell. You haven't heard? Maybe you should get out more.
Adam got them into a mess they could do nothing about and God did nothing to help.
So much for the God who enters into a fallen world to save His creation, who takes no pleasure in death but deliberately creates individuals for the sole purpose of destruction.