>>69884570There's a few issues.
First, going back to indie is a big gamble. Kson is the big example of this - she massively reclined despite a very promising start to her indie career and vShojo didn't really turn things around for her. There are reasons for this beyond just "INDIE BAD" but people are naturally going to wonder. It's going to be even worse for the new waves - a lot of them are getting 2view numbers and graduation would probably only make things worse, plus, Nijisanji will probably demand immediate repayment of the debut debt plus any associated penalties with quitting.
Second, Nijisanji is a big name and basically destroyed Sayu's career. There are probably concerns that if they left, they could expect the company to sabotage them. Even if the company doesn't sabotage them, they encourage the Sisters to view ex-Livers as "traitors" so they'll have problems with antis wherever they go.
Third, in the case of the bullies, things may be better for them outside of the company, but they're all drunk on power right now. Nijisanji has given them basically what appears to be unlimited license to bully and terrorize whoever the fuck they want. If you got off on hurting people and had a bunch of captive employees you could torture as much as you want, why would you leave? Remember, there has been no apparent punishment or reprimand for any of the people who made the Selen disaster possible, so I can only assume the company approves.
Fourth, I just don't think a lot of them are very smart. The smart people saw what was happening and have been fleeing for the exits since Zaion. Too many doubled down, thinking they could ride this out, or let themselves get brainwashed. There are potential financial penalties associated with leaving, but if they walked, in the current atmosphere, I doubt Niji would be able to sue with a prayer of winning. Doubly so if there was a mass walkout. But I don't think these people are smart enough to organize such a mass resignation and many have probably deluded themselves by saying "If people just stopped causing trouble, everything would be fine!" or "it's all the Dramatubers fault!"