Bass is technically doing more than just condemning, listening to her on the radio earlier. Looks like yet another lawsuit, which isn't that powerful but honestly I'm not sure what more one could reasonably do. Mayors can't exactly tell people to throw molotovs or something (she does sound pissed though).
She did say it's pointless, racist, etc., but that she thinks it could even be some kind of revenge thing from Miller against the city he was raised in. Like, yeah, can totally believe it from these assholes in charge.
Reminds me of shit GoP folks do out of spite, like Chris Christie closing a bridge to spite a Democrat mayor. While it might feel good to get a bit of vengeance that way, it's really more how the other side plays things.