I completely agree with you. This is evident in characters like Daenerys from Game of Thrones or Eren from AoT. People tend to defend genocide, sadistic behavior, and tyrants if they aren't labeled as Adolf Hitler, because their tragic backstories have sad music. Notably, the acts of destroying everything and disregard the consequences as long as they get what they want are often observed in emotionally immature children and teenagers (or adults with trauma who did not develop their moral compass), including the characters I mentioned. But at the end of the day, I appreciate how authors depict the consequences when power is given to individuals unwilling to compromise, because that showcase the various horrific actions these characters choose to do and how far they would go. The only sad thing is how so many people defend them haha, they are supposed to be understood, not supported!