Maybe this is all comes down to some sort of distinction between "Science can tell me why I like Tom Waits" and "Why I like Tom Waits can be understood within scientific concepts like psychology" is a distinction I really need to make for my own view of the world.
Because that's not the difference. Both of those questions can be answered by science, and are the same question more or less.
But the question of
should you like Tom Waits or not
can't be answered by science. That's a value judgement.
"Science can answer" and "Science can explain the answer" are... well the same thing to me more or less.
Yes, they are. So give any example of "science can explain why I should like this music" or of "science can explain why I shouldn't like that music" that doesn't start with an assumption of what has value. hat's the difference. Science can explain why, but not whether that's morally right or not.
At the end of the day I'm just not going be okay with someone, even on a purely argumentative level, going "Okay now prove to me using only a slide rule and the periodic table of elements why I should care about other people."
And you don't have to prove that, because that's one of the axioms of your value system. Science
can't prove that. The only thing you can do is make an argument from consequences to attempt to appeal to the values of others; "If we care about each other, we'll all be happier", "if we don't care about each other, you're likely to be killed or enslaved by someone else", etc.
And I don't see away to let "axioms" into the discussion that isn't going to let faith and Woo in as well.
You seem to misunderstand what axioms are, if that's your take. Science itself is based on some axioms, and uses the same argument from consequences to justify those. The axioms chosen for scientific investigation have proven useful and practical, even if they can't be proven.
For example, there's no way to prove we aren't just brains in a jar (I know you hate that, but it illustrates the point) living a simulation. But science argues form practicality and consequences: if we are, there's no evidence to suggest it, and we suffer the consequences of our actions as if it were real, so unless something contradicts that we accept that there actually is a shared reality out there. It's not a logical proof, it's a practical argument. It's based on the axiom of science that gives us "that which is presented without evidence can be dismissed without evidence".
I think you're half right. No question morality and ethics is a social construct. But I'm unconvinced that a person wouldn't have a sense of morality if he was on a deserted island. I've done a lot of solitary hiking and yet I wouldn't litter or needlessly kill some animal. That said, it would be questionable I would feel that way not having been influenced by others at some point in my life.
And while each of us have our own sense of what is moral and ethical there is something call shared morality.
This is pretty much what I've been trying to get to. Just because it isn't objective, doesn't mean it's meaningless or isn't important. No more than a law being passed forcing all music to be variations of Achy Breaky Heart would be meaningless (I'll lead the revolution on that one).
What people are always trying to find in these discussions are a set of values, a moral and/or ethical system, that appeals to the most individuals values. And for most of us we want to be happy, successful, make our own choices, and not suffer. So trying to develop a system that provides that for as many as we can, and in a fashion so that (for example) even those who don't care about others will buy into it (by seeing the personal benefits for group cooperation) is what these discussions are about.