Arguments for Brolly being "bad":
* Extreme Violence: Brolly is incredibly destructive and enjoys inflicting pain. He has a powerful rage and often unleashes it indiscriminately, causing massive damage.
* Lack of Control: He struggles to control his power and often goes on rampages, endangering innocent lives.
* Driven by Revenge: Brolly's primary motivation is revenge against Goku for the perceived injustice he suffered as a child.
* Evil Influence: His actions and rage are often fueled by his father, King Vegeta, who manipulates him for his own gain.
Arguments for Brolly being "good":
* Misunderstood: Brolly is often portrayed as a victim of circumstance, with his immense power causing him to be ostracized and feared.
* Potential for Good: Despite his destructive nature, there are moments where Brolly shows signs of empathy and even a desire for connection.
* Tragic Figure: He is ultimately a tragic figure who is trapped in a cycle of violence and rage, struggling to control his immense power.
* Redemption: In later Dragon Ball Super arcs, Brolly shows signs of growth and control, eventually becoming a friend and ally to Goku.
Conclusion:
Brolly's nature is complex and he doesn't fit neatly into the traditional "good guy" or "bad guy" categories. He is a product of his environment and upbringing, and while capable of great destruction, he also possesses the potential for good. Ultimately, how you view Brolly depends on your perspective and interpretation of his actions and motivations.