Writting my previous comment in this thread, I was like, or maybe we'll get same old story as before. Surely uru wouldn't go there. But no, it went there.
While I don't agree with racism and bullying or being angry about this. Having John go through some kind of Sera arc 2.0 feels slow and wasteful. Like we aren't stupid, we know he'll get them back somehow (same with Sera). Author is just wheel-spinning.