Is nihilism the logical extreme of atheism?

[genkaus]

Some of you seem to feel that I must, in defending my position, demonstrate that theism can counter nihilism. I feel no such obligation. Although I do believe certain theological positions can and do provide a basis for value that atheism lacks, whether that is indeed the case or not has no bearing on the OP question or any of the arguments I have presented. Perhaps both the logical extension of both theism and atheism is nihilism.

So, the logical extension of two opposing positions is the same? That's illogical.

Your obligation comes from the fact that "Only theism can lead to non-nihilism" is a corollary for "Atheism leads to nihilism". If you prove one, it means you've proven the other. And it is your obligation to prove your claims.