@yeti@offset___cyan I wanted to say that, perhaps, a contact with a sufficiently alien intelligence will make differences between human groups less noticeable (to humans). "Particularism" isn't quite the word for the latter, I guess.
But to your point, it might be so, but I think there's much we don't know. Of the "space of possible intelligences", we know just:
our minds,
animal minds which have not yet diverged from optimizing inclusive genetic fitness,
and perhaps evolution itself as a competing optimization process.
Only the latter is a geniunely alien creative force known to us.
So, I'm just thinking what, in principle, can be there. What kinds of minds, lifeforms... And, particularly, what kind of intelligent species and intelligences that have different substrate than ours.
While covergent evolution is a thing, I'd prefer more than N=1 to infer that our condition is representative of the general condition of evolved minds in the universe. And even if it is, evolved minds that have passed the Great Filter (if it exists) might be very different from ours.
Otherwise it's reminiscent of assuming that all stars are roughly the size of Sun.