Y’know if you took out Blake’s WF history monologue in Black and White, as far as the show is concerned the WF are only ever depicted as being a terrorist group. The only information we, the audience, receive informing us that the WF was ever a civil rights group is retroactive, second-hand accounts told by characters in-story. But the content of the show only ever depicts them as murdering, criminal elements, and the most notable WF member a species supremacist abuser, that murders out of spite and power-lust.
If you make the WF, like a Faunus-exclusive crime syndicate, that fits way better w/ their role in the story, how they’re depicted and used. It makes them working w/ Roman less weird, and you can basically keep mostly everything the same. Blake could have been a runaway, that joined up really young, got involved w/ an older guy, got abused, did crime. Then as a young adult leaves, to turn over a new leaf and undo some of the bad she did as a part of the group, while coming to terms w/ her criminal past. Practically the same, you can make Blake feel super strongly about justice, because of said past. You don’t even have to get rid of Blake being an activist, have her past inform her activism as the WF prey on Faunus that have been discriminated against, driving them into lives of crime, and the systems and further discrimination ensure that they never escape. Which I think is a stronger point of activism than anything Blake ever had in canon.
The WF being an organized crime group that gets strong-armed into working w/ human criminals, is way less convoluted than the WF being a civil-rights group turned terrorist organization that gets strong-armed into working w/ Human criminals. It also makes all their actions in the story way less jarring and odd, as it doesn’t contradict a “equal rights for Faunus,” doctrine. Basically nothing changes, but it’s way less messy, and we don’t have to deal w/ the whole prejudice issue, or people’s garbage opinions on said issue.