Yes. In fact, I think it's quite literally impossible to establish a truly universal morality, as I argue here: https://medium.com/the-panopticon-publication/morality-is-personal-and-tribal-always-20c8c31f5d29

So rather than even talking about "morality", what we should instead do, is talk about mutual self interest. And if we take such a converation seriously, I think we humans (being most of us at least somewhat empathatic AND also largely co-dependent), then what we'll ultimatly end up with is rules for collaboration. And that's what we can judge each other and other cultures by. Which is essentiallly to say: We judge each other by how much we trust each other to be good business and social partners.