Wow, that went south in a hurry. There are some books that should never be sequels, and this one is a good example. The plot is basically "Dearly, Departed goes on". There is no significant movement. Several more viewpoint characters are added and while they do have some good points, most of them sound the same. It was hard to get motivated to read several hundred more pages about a civil rights movement where I don't even understand the stakes. So this book is done. Luckily the author is moving on to other projects. Hopefully the next one will be as enjoyable as her debut.
Memo to me: Sequels need to have a plot unique to them that still ties into the larger series story line. If there isn't a bad guy/ticking clock/problem that is unique to that novel then the sequel won't work.