I know who the Githyanki are and I trust their motives. They will probably kill me but that is the morally correct course of action at this point. The game has provided no progress in the main quest to remove the tadpole and so I must honor the oath I took in the Druid Grove. Certainly I cannot take my brain worms into Baldur’s Gate. I claim that, unless Orpheus has a cure, any good-aligned character must snuff it at this point. We are out of options. But like a blinking green door in DOOM, the game was clearly telling me that I should trust the guardian for the sake of progressing the story. Only a self-aware game piece can choose that option (and it chooses it largely because there is no other option).
That is what I meant by “Killed by Bad Writing.’ I don’t believe the game provides any logical and principled path forward other than to die in Act II. I must choose their rail or end the game.*** So now I am trying a character that has no logic or principles. She just returned camp to find that Alfira wants to join the party. Oh happy day! Give me a sandbox with Minsc and Alfira and I might quit my job. But of course I am now looking at her disemboweled corpse. This is how Larian wants me to play the game…
I still do not understand why you have a problem with blowing things up, even if the game will go on if you will not. If you are RPing a character that would have done that - perfect. Do it. The option to end the story there and then is great, imo.
But! It's obviously a GIGA stupid move. Unalive yourself just to kill the Big Brain - the only thing that stops transformation in those infected? This is not a choice a good-aligned character would've made. That's a move a chaotic evil worshipper of Bane would do though, - murder on a grand scale, self-sacrifice to rejoin your God in the afterlife.
After that it is revealed what exactly is controlling the Absolute, so yes, you MUST go to BG to continue searching for ways to get rid of the tadpole by dealing with the Big Brain. BTW There are infected in the city already, presence of few more will not change anything.
Bigger issue is the Emperor - my character did not trust him one bit, since the very start. During the fight in the Astral Prism, where Orpheus is under attack and the Emperor is losing - obviously I should not trust some mindflayer (who is revealed the first time) that says "it's me who have been helping you! Save me against these githyanki!", it's only logical to assume we are being deceived again - and mindflayer is just manipulating through the tadpole to save his hide. So naturally, I attacked and killed the Emperor, prompting "game over". Like WTF? Which idiot would actually trust an illithid in this situation? Here is where the game is forcing you to reaload. And the cringe explanation how he was hunting criminals to eat their brains, wearing a hoodie and all, with nobody around realizing what he was is a huge fail. He turns out to be a scum anyways. I did not progress far enough to see if I can f**k him up, but I'm trying for sure.
Also, some shoemaker's son stealing the Crown of Karsus from Mephistopheles vault? Really? Load of BS. Raphael couldn't do it, other Archdukes couldn't do it, but Gortash could. Also, How did they apply the crown to the brain? How did they even get anywhere close to one of the most dangerous beings in the universe that can literally read your mind and know your intentions, with nothing to prevent it (I think, according to canon, you can not shield your mind from big brain). Another fail, imo.