I agree with this.
"This is because without the choice of evil it is impossible for souls to progress spiritually, they must intentionally choose good over evil for spiritual progress. Thus, his group soul and their creation of negativity act as the catalyst for our souls to progress spiritually as it provides an option for humans to choose good or evil."
Without "Evil", "Good" cannot be recognized.
Without "Pride", "Humility" cannot be recognized.
Without "Selfishness", "Selfless" cannot be recognized.
Without "Revenge", "Forgiveness" cannot be recognized.
Without "Hatred", "Love" cannot be recognized.
Without "Separation", "Unity" cannot be recognized.
Without "Is Not", "Is" cannot be recognized.
Just like in a good movie, somebody need to play the "villain" / "antagonist" role.
But it's merely a 'role' that he need to play, behind the role lies a very good actor with a very good heart.
All the world’s a stage, and all the men and women merely players;
They have their exits and their entrances;
And one man in his time plays many parts.
-- Shakespeare
An 'enlightened entity / soul' will definitely came into a realization that there's actually only one person who plays many parts.