Era. A forum where if you look sideways at a dog and sneer at a child there'll be a thread, yet kill a dog and harm children in a fictional TV show and it'll be shrugged off as "not evil."
Why is it so difficult to understand that they're not real? Everything inside the Hex is
fake. The only things real in there are the people Wanda has imprisoned against their will.
If I'm right, as far as Agatha is concerned, she "killed" what might as well be a stuffed toy. Sparky looks like a dog, barks like a dog, but it ain't a dog. It's a facsimile of a dog, a construct of Wanda's need to have the normal family life that was taken from her. The twins are no different. They're no more real than Vision is, just a coping mechanism for Wanda so that she can avoid reality rather than face it.
Vision, the twins and Sparky
are not real but the people of Westview are so if it takes a bit of tough love for Wanda to realise that what she's doing is wrong and isn't helping her or any of the thousands of people she has under her spell, then kill all the damn Sparkys you need to.
Did you see the scene where Agatha turned a bug into a bird and then her rabbit ate the bird? Are you disgusted that a bird got eaten or do you acknowledge that it was really a bug? That's the difference between reality and fiction and Wanda can no longer tell which is which.
This really shouldn't be that difficult to understand, but sure keep playing the morality police if it helps.