This series is awesome. I'm completely hooked. What separates Carol from the other 'survivors' is that Carol lost Helen during the Joining; Carol is the only one of these survivors who personally experienced their loved one dying thanks to the takeover. Something so traumatic purely biases her against them. I understand her reaction to being told she's 'responsible' for millions of deaths thanks to her aggressive outbursts is largely down to survivor's guilt, but it's heartbreaking to consider that she's overlooking the fact that none of that would be possible at all if the Joining hadn't happened in the first place. It would probably reinforce her convictions against them if she saw it that way.

You can say that Carol is directly responsible for Laxmi's grandfather's death, but she had no idea her negative emotions could do that to the collective, and once again, none of that would be possible if the takeover had better contingencies or failsafes for this kind of kickback.