This would create a fight or flight scenario if Sophia chooses to stop participating. Aiden is not going to allow her to walk away like that, plus the police have already stated that they won't touch him unless he commits a serious crime, like murder or seriously injuring someone. So unless you're filming him committing murder or seriously injuring someone, he will continue to terrorize, which will not allow this story to end. Right now, Aiden has no authoritarian telling him to knock the shit off. His father is working in Europe and his mother died. His uncle is working all the time and probably has little time for him and only defends him when he's in trouble and his aunt won't do anything for him. His uncle probably just feels bad for him because his mother died and his father is halfway around the world, so he's probably allowing Aiden to grieve in his own way which is chaos and trouble, which allowed Aiden to start his Kool-aid gang. Also, We still haven't met Aiden's uncle yet. We only learned about him through other people in the story. I wonder if he may make an appearance.
Sending Dylan to Ninjitsu training, I believe will have a role here. I just don't see the point of sending him to training if he doesn't use it for defense, in this case, Aiden. Dylan may find out what is happening to Sophia and might set up a plan to capture him trying to cause harm to him and then he unloads on Aiden, or Sophia may devise a plan with Patricia and Carl to help take him down by filming him in the act of committing a serious crime, or Sophia could be the one that Aiden will attack and Dylan manage to film and save her. Also, Dylan has friends as well, which he may ask for their help. So many possibilities, I guess will have to wait and find out.
Your comment about Morelle helping Sophia may be possible, but that could possibly tie Sophia in with her honoring Don's request, which we don't know yet. but if Don's request is to become a high-class courtesan, will she have to sleep her way to Dylan's safety now and help pay back Liam's gambling debt. Plus, if she chooses to reject Don's request, then you're back to square one again. I just have an issue seeing this as it creates a loop of corruption that she will be damn if she does and damn if she doesn't and no true way out.