False Dilemma / Equivocation Fallacy!
The atheist does not have to account for everything else, because he never claimed to possess all knowledge or have ALL the answers. Instead, he can honestly answer, "I don't know. My knowledge is not infinite."
The only comparably honest reply a theist should give is likewise: "I simply do not know. It's a true conundrum. I have, to be sure, a couple of dusty old documents that were in fragments, and have been translated and re-translated and then edited and purged and codified in Councils back when people still believed that the stars were stuck to the Firmament, and these documents purport to have answers, but I, myself, am unable to provide forensic-level evidence and prove, with geometric logic, why unjust suffering exists."
THAT would at least be honest.
Regards,
The believer's position is that there is a creator of all things, but a creator who abides clearly evident unjust suffering within what he created. The challenge for the believer is to explain why such a creator of all that exists in this wondrous universe accomodates the innate evil which also exists and which he created.
The atheist's position is that there is no creator and the universe was formed by happenstance, by chance. The challenge for the atheist is to explain the existence (not how it came to exist, but why it came to exist ... why is it there?) of not only the physical (i.e., galaxies; planets; In-n-Out burgers), but the esoteric (i.e., feelings of love or of sadness). I should think any thoughtful atheist would have pondered this as a matter of course.
Anyway, we're not going to resolve this on an FR thread but I find it interesting as well as entertaining ... and I thank you for your thoughtful response. Cheers!