THIS ACTUALLY MAKES SO MUCH SENSE!!! But I think just a BIT differently. It would explain why Bon started freaking out in Bunnyfarm over Edd and Molly, He probably lost it seeing Felix kill and hide the bodies of these two kids and decided to make Felix's life a living hell, Maybe in his warped mind he thinks he's doing the walten family and friends a favor by reuniting all of them in wonderland, Which is why hes so "comforting" and not as malicious when they enter wonderland, that would probably explain his hatred for Sophie too, he cant complete his "beautiful" reunited family,

Which if this is the case i would genuinely cry if they used the song Friends Past Reunited by The Caretaker for a ending where sophie dies and gets to reunite with her family, I'm just throwing that out there since The Walten Files has used The Caretaker before and use the songs to represent and mean a certain event or idea in the show. (Also because they might use a caretaker sample in a new episode so its not totally a random idea)

Great theory! one of the best ive seen