Hi Kent, some interesting points you raise, and at the risk of Brian's ire I will continue with the opera as I see it.
You last points are the main ones I refer to as the 'isn't that one of the main things we are here for?' to me is unanswerable, simply as I have no idea 'why' we are here in any spiritual sense. That we have the ability to think is a gift (often underrated) so on that basis it is probably for each individual to answer the question, and therein lies the problem?
Brian once made the most pertinent response to a much earlier post, and it was one of his shortest (:-) which was 'we are all creatures of our experiences' or words to that affect. I deem this not simply of own own physical experiences, but those acquired often second-hand. The books we read, the newspapers and media, our form, type and qualityof education are all parts of this I think. As such it is hardly surprising we are all so different.
However and except in one major area I do feel there are more things that really join us as human beings - we all eat, drink, defecate and even (sometimes, or so I am told) fornicate. We do seem capable of emotional responses between us - but not always amiable ones.
So, where do we get the guidelines? Within ourselves? Partially, but I believe that collectively society has laid down certain 'rules of engagement' and these vary from religion to religion, value systems and much more They are not all the same, which is the root of most conflicts in my view.
Ascending spiritually I think is another way of expressing the desire for 'self-fulfilment' or even just trying to make sense out of everything. By definition we will never know 'everything' let alone understand it.
On this basis - We're doomed I tell thee - we're all doomed!!!