Ok.
What's the difference between Wanda and Thanos? Other than scale? If Wanda succeeds, doesn't she cause an incursion between two universes, meaning that even if she succeeds, she will murder trillions of beings? In WandaVision, she is motivated by trauma to torture thousands of people. Thanos is motivated by trauma to save the universe.
Is there a difference? Does being "motivated by trauma" excuse anything? It explains things, sure. And I'll totally agree that Wanda is a sympathetic character. Fair enough. But, at the end of the day, doesn't she have any responsibility for her actions? And, if she doesn't, why do we see Thanos as the villain?