I have a short theory about modulo

So we think that yuji is now a very powerful character that can defeat dabura right? So if he pulls up in the text couple of chapters… how do we not know that he will be just giving dabura a free win just bcz he’s depressed and he just wants to die now ( i know this is out of character but this actually could be it because he could be tired of losing everyone and became so depressed that he wants to die and the only way he can die is from another powerful person which there is only dabura) but this would also mean that aliens would take over earth too