Sad part is this makes Fu no different then the woman who cornered and caused her father's suicide
"All her Followers"
"Her sociopathic behavior! I'll give Fu points! Yotsuha "Egg Donor" ALWAYS SMILING even as she was being stabbed to death was....disturbing to say the least, even when I KNEW THAT WAS COMING cause all her behavior made it obvious that was going to happen"
"The Lengths she's willing to go to for her goal, in Fu's case, making Yotsuha the same as her, being helpless in stopping the death of a loved one, In "That Things" case, the willingness to play the long game just to to see the reaction of someone's life going downhill when things were looking up by drugging, raping and having the kid to wait...then when she doesn't get the reaction she wanted, moves on to torment the "Tool" to get SOME amusement!"
I doubt Fu cares and she's smart enough to know she's no different, but with HER dead, the only one she can target it Yotsuha (Refusing to see her as a victim because it delegitimizes her own revenge that already wasn't legitimate to begin with the second "that thing" died!)