Why do you think it needs to be confronted? … I don’t however feel the need to ‘prove’ that my underlying preference for preserving the lives of myself and my family and friends (and to a lesser extent humans in general) is a fundamental principle—I simply take it as a given.
I think it needs to be confronted because simply taking things as given leads to sloppy moral reasoning. Your preference for self-preservation seems to be an impulse like any other, no more profound than a preference for chocolate over vanilla. What needs to be confronted is what makes that preference significant, if anything. Why should a rationalist in all other things let himself be ruled by raw desire in the arena of deciding what is meaningful? Why not inquire, to be more sure of ourselves?
Most problems in the world seem to arise from conflicting goals, either internally or between different people. I’m primarily interested in rationality as a route to better meeting my own goals and to finding better resolutions to conflicts.
Again, this is the ultimately important part. Wherever the goals come from, we can cooperate and use politics to turn them into results that we all want. Further, we discipline ourselves so that our goals are clear and consistent. All I’m saying is that you may want to look into the basis of your own goals and systematize them to enhance clarity.
Peaceful coexistence is not something I object to. Neither does anything oblige agents to perfectly align their values, each is free to choose. I strongly endorse people with wildly different values cooperating in areas of common interest: I’m firmly in Anton LaVey’s corner on civil liberties, for instance. It should be recognized, though, that some are clearly more wrong than others because some people get poor information and others reason poorly through akrasia or inability. Anton LaVey was not trying hard enough. I think the question is worth asking, because it is the basis of building the minimal framework of rules from each person’s judgement: How are we supposed to choose values?