KWED
Scratching head, scratching knee
You keep making this claim, yet there are many millions of people who live in a completely godless world and who accept that we have no "greater purpose". Most of these people not only have a completely reasonable and rational idea of "right and wrong", but it is often far "better" than those held by religionists.There is no such standard if we are meat robots. There's only what we are programmed to do. You can't blame a robot for carrying out its program. If it's program is to torture kittens, I can't say that's wrong or right. It has no other option.
So, instead of repeating the same debunked claim, try addressing the actual issue.
People can have excellent moral values without god or purpose. How do you explain that?