I have nothing to say about people I do not know, but I hope I can offer something to the "tangents."
I see morality as a set of rules and behaviors practiced to show other humans that we value them. They are human, therefore they are worthy of respect, therefore we need a way to show our respect to them. Morality (don't kill, don't covet, don't steal, don't step on toes, etc.) is how we express this sense for inherent value.
So, from this view, all morality, from every culture, serves the same purpose: to express how valuable other people are to us. The moral
expression differs, sure, but not the intent.
So there is your indication of absolutes. All morality exists because human beings value each other inherently, and we need a way to express that each one is valuable (important, worthy of respect, etc.).
-Pie