Rob writes:
In the Utilitarian and Naturalist reality, no! What benefit is it to me?
You seem to misunderstand utilitarianism. Utilitarianism is doing that which begets the greatest good for the most people. Absolutely
not like the nihilistic strawman you've concocted. In fact, you could say it's the
opposite.
I don't know what naturalism has to do with morality.
The rest of your post is just a strawman argument. (And I'm having the hardest time figuring out just how your Stephen Hawking quote relates in any way to the rest of your post.)