Apparently same-sex relationships are accepted in WOT as a matter of course, and racism is completely nonexistent. RJ's quotes state as much, too.

Now, I'm thinking that this is a remnant from the more enlightened Age of Legends, where such things probably truly were nonexistent. But isn't it a bit implausible? We're treated to a lot of other signs of provincial attitudes (2rivers initial hostility to strangers) and outright xenophobia (Aiel) and since black people appear fairly rare in the main continent, I would expect some prejudice at least. Or maybe a character wondering if a random Sea Folk person was badly sunburnt or something.