Oh. This conversation again.
I think calling Sera racist is facile and misses the nuance of her character. She doesn't like "elfiness" not because she doesn't like elves. You can see her reaction to the slaughter of elven servants servants at Halamshiral for evidence of that, and also despite her reservations she will enter into a relationship with an elf. I can't see how these are the actions of a racist.
When she talks about "elfiness" she's talking about hanging on to what she sees as a failed culture which belongs in the past, not about physically being an elf. She doesn't like holding on to stories of past Elven culture as a way to be different from everyone else, be that in the case of the Dalish or the case of the Vehnadal in alienages. She wants everyone to be treated the same, which is why she supports all the oppressed, not just the elves, and she sees any form elvish separatism as being the opposite of what is needed for that to happen. She thinks that elves need to get their heads out of the past and accept the dominant culture.
Now you can call her view naive, you can say that she's wrong and cultural diversity should be embraced, and I'd probably agree. What I can't agree on is that she's racist, because I don't think that her motivations come from a standpoint of hating elves themselves. She hates practices that celebrate elven culture because they emphasise elven difference which in her view is a barrier to elves being treated equally. She feels that concentrating on past glories is the reason why elves get stuck in alienages or forced to roam the wilderness hiding from humans, and she wants elves to get away from that.