Veganism

[Thumpalumpacus]

I'm saying that there's no agreement.

You're wrong about that.  Just wildly wrong.  Objectively speaking.  That may not certify that moral realism is true - fundamental intersubjectivity is a strong possibility....but, like any number of failed (attempted-alleged-purported) assertions of fact....it's just plain wrong.

I disagree. Other cultures see or saw slavery as moral; many haven't or didn't. Other cultures saw cannibalism as ritualistic attempts to gain the strengths of one's enemies and thus moral; others have always seen it as immoral. Some cultures have seen military expansionism as not only justified but as a morally-supported by this or that existential or religious dicta; others abjure it.

It's true that there is plenty of agreement, but it's also true that there is plenty of disagreement, both culturally and individually. I don't think that subtracts from the broader point, that if there is indeed an objective standard for morality, we humans have a real hard time actually finding it and convincing others of it.

I agree that agreement or disagreement makes no comment on the truth any morality put forth.