It's not "what do we want our societies to be" -- everyone wants the same ideal society. It's "what do we want our societies to be, within the constraints of w

It's not "what do we want our societies to be" -- everyone wants the same ideal society. It's "what do we want our societies to be, within the constraints of what is actually possible," and the key disagreement is over what is actually possible -- indeed, people's assessment of what is possible is so different that their world views are irreconcilable.