If self defense is good enough for Agatha, then mental breakdown is a good enough defense for Wanda, no? Both hurt people right?
How is it self defense on Agatha's part when the witch ruled she broke the law? Justice is being hand out. Were they killing Agatha or were they stripping her of her ability to use magic? We will never know cause Agatha killed them.
After killing the member of the Covenant, Agatha knows what she is doing is wrong, yet she continues to kill her mother as well. Could not Agatha just subdued her and run off? Agatha killing those people and even in modern day show no remorse for what she did. If that is okay with you, then Wanda taking control of people minds for a week should be fine too.
Agatha in the mind share coven universe with Wanda, mock the entire idea that witches like them should never submit to authority.
And you are right, two bad guys did fight it out, and one walked away. What is your point? Not all stories need to end with bad guys defeated or lock away. That wasn't the theme of this show- it was about how Wanda was working through her grief.
The point is that the writers used contrived narrative to influence how the audience percieves villany, and everyone's characterizations suffered for it.
Wanda, Hayward, and Agatha are all villains. But Hayward was atleast trying to rid the world of a hostage taker thats tortures her victims... let's have him shoot at kids so the audience doesn't forget he's the real bad guy. Agatha was atleast trying to strip the power of a mythological harbinger of agony and death. Let's have her choke kids and kill a dog, so the audience doesn't forget Agatha is the real bad guy.
These people are suffering, and will do so for a lifetime. Not because Hayward wanted to reanimated a weapon. Not because Agatha's power lust lead her to kill her coven. They are suffering because of Wanda.
Wanda's the only Villain in the story who's actions in Westview resulted in a net negative for society. And rather than embrace this, the writers decided to hide from it at the last second.
It's incredibly problematic that only the antagonist highlight the damage that Wanda has caused and ultimately runs away from, while Monica and Vision give her a completely unearned benefit of the doubt at the end.
It would have been amazing to see how the people of Westview viewed the Wanda/Agatha fight after Agatha gave them reprieve. Even though the narrative went with the idea that Agatha had no intentions of saving them, they surely would have viewed her as a savior. I wonder how it makes them feel to see Agatha/Agnes subjected to the torture they just escape from - a permanent reminder of what their families had to endure. Instead we're left with Monica suggesting Wanda is the unsung hero for her sacrifice.