Just because you cannot empirically measure something (at least at the moment), doesn’t mean it can’t be true.

I agree. However this is a very bad basis to start from if you want to find an actual truth. There is millions of ideas that were dreamed up by people that can’t be empirically denied or confirmed, including all the gods.

Take consciousness, for example

I think that is a great example. Because if we understood consciousness, we’d probably also understand how we come up with ideas, like morality.

That’s really the bigger point. Morality is an idea. It’s like countries. We divide up the planet into sections on a map we made up and agree that those now exist. Then we build stuff along the border to make it exist. But there is no “true” or “correct” way to divide the planet into countries and nations. It’s just a process that happens as an emergent property of a civilisation.

Just like consciousness is an emergent property of the brain. So ultimatly if you find out anything about how morality comes to exist, studying the brain is a good start.

But I doubt we’ll ever find any objective moral truths, because we made up the entire concept.