Last thing I'm going to say on the Dany thing, feel like we are going in circles with it:
The Mad Queen descent was rushed, but I've seen a lot of people here make fun of the bells and at Daenerys' mind breaking at the point of surrender but imo it made sense and was set up earlier in the episode.
Seasons 1 to 7 showed up a Daenerys that rose from the very lowest of lows to the height of power. In Season 1 and 2, we see Daenerys realize that without power, no one will respect her or take her claim seriously. She’s told repeatedly that she’s nothing without an army, and she’s nothing without ships. She gained those. We cheered for her.
When Daenerys leaves Essos, she thinks she can rule through compassion and be loved by the people once she gets rid of Cersei. She had her armies. She had dragons. She had powerful allies in Westeros. She had the strongest claim to the throne and finally had the chance to take King’s Landing.
Season 7 and Season 8 was about losing that power. First, her powerful allies are stripped away one by one. Olenna, Elliria, Yara. Tyrion mismanages them as Hand of the Queen and makes horrible tactical mistakes.
In S08E01, Daenerys realizes she doesn’t have the love of the people. In Essos, she broke their chains and earned their devotion and became their Mysha. She freed them from their oppressive masters and they were grateful to her and made her their queen. In the North, Sansa and Jon had already broken their chains. They defeated Ramsay. Sansa and Jon, as Starks, have earned their loyalty for a lifetime. Daenerys is faced with a smallfolk — her subjects — that don’t love her. It’s a harsh realization for her.
In S08E02, she loses her claim. Jon tells her his true identity, and suddenly she’s not the only Targaryen in the world. Even moreso, Jon’s claim is stronger. He’s a natural leader. She’s immediately threatened by his confession, and is shaken by it.
In S08E03, she loses Jorah. He was there for her since the beginning. He was devoted to her not because of her power, not because of her dragons, but because he loved her. He never would’ve betrayed her and she trusted him fully. He’s essentially been her rock through all her hardship. And then he dies protecting her.
In S08E04, she loses her second child, and Missandei. One by one, everyone she held close that was devoted to her and her alone was taken from her. Her dragons were a symbol of her power; with only one left, she was beginning to get desperate. Her only advisor from Essos was Grey Worm, and he was a soldier.
In S08E05, she loses Varys, Tyrion, and Jon. Through betrayal, no less. Jon betrays her by telling Sansa, and Sansa tells Tyrion, who tells Varys. Varys openly conspires against her and (presumably) tries to poison her and turn Jon against her. She kills him without a trial, without asking for his last words, and without a second thought. At that point, she’s on the brink.
And Jon goes to her, and she seeks one last bit of comfort from him. She tells him that people love him, and that’s something she’ll never have.
”Far more people in Westeros love you than love me. I don’t have love here. I only have fear.”
He counters by saying that he loves her, and that she’ll always be his queen. But when they kiss, Daenerys realizes that he’ll never truly love her again. And so, she says: "Alright then. Let it be fear"
When the bells ring, Daenerys realizes that while the city has surrendered she’ll never be secure as queen as long as the people don’t truly, irrevocably fear her. She will never be loved by them. She has lost everything she has gained and every friend she’s made, and she’s completely alone. King’s Landing becomes a symbol of everything she’s ever been through — her brother selling her like a brood mare, Drogo's death, being ridiculed and laughed at from Pentos to Slaver's Bay to Mereen, being threatened at every turn, losing her dragons, losing her loved ones. She’s on her dragon, she’s alone, she feels powerless, and she’s angry.
So what does she do when feels powerless? She reminds them all that she is still powerful.
The people will never love her, so they will fear her.
Killing all those civilians shows that she's had a trait of vindictiveness early on in her life, going back seasons in the story.
Those quotes I posted above show that she's dreamed of violent revenge, burning cities to the ground.
Violent vindictiveness has always been a part of her character that she had to control (or have others help her control).
Also... as people keep forgetting... She has a predisposition to psychosis, it's been repeatedly said in the show that madness runs in the Targaryen bloodline.
The Mad King didn't start off genocidal... His extremely violent nature grew over time.
Here is a brief reminder of the Mad King's story...
"Although his rule began benevolently, he succumbed to the madness caused by his incestuous lineage, and was eventually deposed by Lord Robert Baratheon in a civil war. "
I think a lot of people have forgotten (or didn't notice) the foreshadowing in previous Seasons.
Even GRRM was building this same Arc in his books.
She's narcissistic, has a streak of vindictiveness, has a bad temper, and her bloodline is predisposed to mental illness.
All that has been shown since Season 1.
After experience massive trauma in a short space of time (2 Dragons killed, 2 of her best friends killed, her lover breaking up with her, being betrayed by Varys).... Her worst tendencies came to the surface... Which is a very believable psychological context for her worst traits to come to the surface.... Grief, Rage, and Paranoia.
Her grief was IMO the catalyst for her violent psychosis.
A bunch of us predicted that she was going to become psychotic and commit genocide (Mad Queen), based on everything we had seen of her since Season 1.