My point was they died in G ending and then, in the same ending, the three Alices popped up anyway. That's different from dying and then time being rewound (looping) and coming back.Actually they are, because they and Leaf/Mary Sue died in the G ending and if they all suffered a permadeath they wouldn't have returned in the next loop and the G ending would be the final ending. We even see Jabberwock as Mother Alice for a brief moment when we first meet her in Carroll River. Considering what their boss forms are in the E endings they most definably are the Wife, Daughter and cousin of the Black Pharaoh that ending up like TCO but to a lesser extent expect for Sister Alice.
There is no indication that the Alice at Jabberwock's riverside spot is Mother Alice.
If they are the 3 nightmares, and Jub Jub is Sister Alice, then why didn't Jabberwock pull the same stunt she did in G end and just delete her? I also have a hard time believing Jub Jub of all people would stand up to to the other two or crawling one.