My questions would be "Who are you? Which groups of humans (if any) got it right when making up a religion? Tell me about yourself and why you didn't reveal yourself to me."
That's not what Stephen Fry would do. He makes the assumption that he knows the mind of god and attacks the god for not being nice to humans. In other words, he accepts the problem of evil and assumes that the god he is facing gives a damn about some obscure species on a minor planet in one of billions of galaxies. Later on Stephen Fry concedes that he could be talking to the Greek gods or some other gods but by then it's too late.
The god he is addressing may or may not have done any of the things in the Bible. If he isn't that god then he will know that Stephen Fry is attacking a strawman. If he is the god of the Bible then presumably he/she/it had his/her/its reasons for doing apparently evil things and Stephen Fry is about to get educated about the real mind of god. That may turn out badly for Stephen Fry.
If you ever run into any real gods I'd advise you not to mess with them.
Many of my atheist friends think that Fry's response is fantastic because he really shocks the interviewer, Gay Byrne [Stephen Fry on God]. That's naive. Most intelligent Christians have developed some very good rationalizations concerning the problem of evil. They've heard it all before and they know how to respond. One of the classic responses is that cannot they know the mind of god. But Stephen Fry knows the mind of god and this is puzzling because Fry is an atheist.