There is no such thing as an objective moral value. If there were, you could show it rather than just talk about it.
This was already
explained to you, and you declined to comment, much less offer a rebuttal. Presumably, if you could have explained why the argument was incorrect, you would have. Merely offering the opposite conclusion without an explanation for why you disagree with the specifics of the argument gets you nowhere.
The argument still stands.
Some have even here on RF. But that is irrelevant. One can only speak of one's own moral values.
What I and many others say is that there is no objective morality. Moral values are not objects or attached to objects. They are subjective beliefs. They do not exist out in space independent from moral agents. They don't reveal themselves to the eye, or in a telescope or microscope like other objectively real things do.
You can only say that rape is wrong to you. Others may agree - perhaps universally - but that still doesn't make any moral precept objectively real or even true.
A collection of subjective beliefs, even if all identical, remains a collection of subjective beliefs. It does not become objective just by being commonplace or universal.