Is Morality Objective?

[Bucky Ball]

More like:

We ought to eat to survive.
We ought to get enough sleep to be alert in waking.
We ought to better ourselves to get by in life.
We ought to get along with others to thrive.

That sort of thing.  All are based on objective facts about ourselves and the world.

They are based on hidden assumptions, e.g. we ought to survive, we ought to be alert.  That sort of thing.
Also, define "better".  Objectively.

Where are the determinists when you really need them?  No, such things are not based on our assumptions.  They run much deeper.  They are based on our nature, which is an objective reality.

"Better" is pragmatically whatever is effective.  Circumstances alter cases.  What is important is how they are directed, as I clarify below.

Morality is about optimizing our surviving and thriving as individuals in societies.

No, it's not.  It's about how we treat others.

You act as if how we treat others exists in a vacuum.  But since how we treat others changes with the circumstances, this is obviously not the case.  

We are goal-oriented creatures, and our goals are surviving and thriving.  I am asserting that morality only makes sense as an evolutionarily-developed strategy for intelligent, social creatures like humans to reach such goals.

The hidden assumption there, is that individualism is raked first as a value. 
In tribal societies, the survival of the group is valued the highest. 
Morality is BOTH about how one treats others and thriving in a society. 
They are not divisible. How one treats others directly impacts how one can thrive.