It's a worthwhile question, but probably fits better on an open thread for the first round or two of comments, so you can refine the question to a specific proposal or core disagreement/question.

My first response to what I think you're asking is that this question applies to you as an individual just as much as it does to humans (or human-like intelligences) as a group. There is a risk of sadness and torture in your future. Why keep living?