User blog comment:Godzillavkk/If the Voice in the Darkness is the main villain of Starcraft 3, what should be the difference between him and Amon?/@comment-31277203-20180725231459/@comment-31277203-20180808024736

The problem right now is there's too many differences between the terran and protoss people, even if Kerrigan is factored out of the equation. No doubt plenty of protoss know from Raynor that it was Mengsk's actions that caused Kerrigan to become infested in the first place, along with his greedy ambitions. Again, as I stated before, Mengsk's influence in the Dominion is still around, so the protoss wouldn't be so willing to trust terrans.

As for uniting against Kerrigan, the problem here is we haven't seen enough details on what the xel'naga can do, and we don't know if there's a way to reverse what Ouros did. I think only once we have those answers can we determine the next step.