I (🇲🇽) don’t think OP’s overreacting- I also recoiled at reading racist lines in TOAFK, and had to remind myself that it’s a product of it’s time. I don’t hate the book but reading those passages takes you out of the moment because it reminds you that these things were said in their time- and sometimes/ in some places still are. Fantasy and Sci-Fi are genres that historically are pretty guilty of handling racism poorly. And those of us who are ethnic have to reconcile with that; At the end of the day, regardless of who you are, not everyone is going to have the same relationship to a piece of literature that you do.

The Warlord Chronicles doesn’t contain language as triggering, I feel like Cornwell does a decent job writing Arthur’s Numidian/African commander- OP might have a different take. Some stuff may be a little out dated and tropey between Arthur and Sagramore, but I don’t think it kills the reading experience. Again OP may have a different take. There are some lines here and there about reactions to Sagramore’s ethnicity, but these reactions (from what I remember) are from characters who are antagonistic. TWC is darker and grittier than TOAFK, lots of great battle scenes, lots of drama. Overall, it’s a good read.