@FKW_ll Best to get stabbed in the back than eaten by cannibals. I get where you are coming from, since you know that the manga wouldn't let Sawada win, you are more worried about the insidious problem of Kai, who can be more of a wildcard as to what he can manage to damage.
However, in real life I'd hope everyone would have the wisdom to see that yes, sometimes you are going to lose, unlike what tends to happen in fiction, and it's sometimes better to get stabbed by a friend, especially when this stabbing isn't even seen as a betrayal of trust, than the indirect possibility of getting eaten by a cannibal.
Not quite the exact thing, but you can see some examples irl like Vetranio declaring himself emperor during Constantius II's reign so that another, much worse dude wouldn't do the same.