This is only mostly right, because nobody has been able to ground ethical statements in anything at all.

And yet, somehow, we not only make ethical statements, we exhibit some manner of success in arguing about them in that after the argument people's minds can be changed, and people can agree that we have made some sort of objective progress.

But I think we now can have a pretty good understanding of why: https://medium.com/@ichoran/solved-the-meaning-of-life-and-the-is-ought-problem-b8a62283ba

(This is not written in philosophical style; perhaps I should go back and write a companion that tackles the topic properly as philosophy.)