AspE wrote:
I don't think the Bible even mentions hell much, that's a later invention.
Yep, that's Hellinistic/Greek influence there. The Bible talks a bit about a 'pit' or 'lake of fire' in the NT, but most popular conceptions of hell is made from reading between the lines (yet it gets thrown around in church songs, sermons and Sunday school. So odd).
Taking the OP more seriously, there is some truth there. Religions anchor ethics/morality to an imaginary, made up reality, while atheists skip the imaginary part and focus on the process of making it up. In the end, atheists admit that we are the ones making it up, which feels a bit odd to say, but there's no way around it. It would be extremely convenient if there were a supernatural relationship to refer to when trying to figure out what to do, but that's just not the case (and the easiest way to see that is to ask different denominations, sects, religions, cultures, etc, about why they believe what they believe, and you'll see everyone has an equally convincing answer that is mutually exclusive towards each other, except for the ones that aren't, but by not being so, become so anyways).