red team definitely loves lore and acting, but I really think it's be understated how much blue's actions are in-character. a major upset for red is how blue and green could just betray them immediately and start playing the game, but from blue's perspective this was completely logical and justified. from blue's perspective, this is a game that they are going to play (and try to win!) and the deaths don't mean anything to them bc it's part of the game. it's not a personal thing or a moral question for them. have bad, tubbo, pierre, tina ever shown a particular value for player deaths? no. and all of them have been quite willing to do adapt their approach with the circumstances and their needs.

tina tried being nice and it didn't work? she'll work with bad then. bad can't get his eggs back? he'll start kidnapping workers until something happens. fred's been kidnapped? tubbo is going to unravel quackity. with tina and bad, the easily shifting morality makes sense. they are both demons (or demonlike i know tina was iffy on what canon she wants for herself). with pierre, he's very used to be being a pawn in the federation's games at this point, this is just another game he has to play (idk much about ayrobot sorry).

tubbo is also used to playing the game. he has always reacted futilely to the federation's whims even if he didn't want to! look at his quest to fix ramon's machine. he and phil fought over that, bc phil couldn't understand why tubbo would just give in and break ramon's machines, betray his side? but from tubbo's perspective there was nothing he could do. feds were insistent, he was powerless, and the damage was already done by him being asked to do it. and this game is no different!! he's brought this mentality to pac too. who would otherwise be having a crisis about killing fit and losing everything. tubbo really helped him out by pointing out it was the futility of the game. pac gets to enjoy having a purpose and play the game even players like missa, who haven't participated in killing, have adapted to the game shift well. missa gets to feel useful and like he's not been left behind! he's enjoying himself and wants to participate! most of blue team was lonely, isolated, and purposeless. now they have been given a team, a purpose, and a reason to talk to people! of course they've taken well to this change! why wouldn't they?