Stealing these responses to this bullshit from elsewhere:

If they wrote her today she would be an insufferable mary sue who would steamroll through the adventure with no help and would show up Aang at every given opportunity while also demeaning him and telling Aang to check his privilege.

And

Toph worked because she was flawed.

Extremely powerful, but also very alone

Able to see the world with her earthbending but Katara still had to remind her she was beautiful, because Toph had never seen her own face

She spends quite a bit of time unable to see, even with earth bending. She holds Sokkas arm on the boat in S3E4, when on ice in the Serpents Pass, and hanging off the airship in the finale (and more)

She’s extremely perceptive about everyone but herself, because her own internal trauma is too much for her to process without Katara calling her out for it

Toph is extremely powerful, and her mistakes, disability and flaws don’t negate that.

If Toph had been woke the narrative would have always supported her as justified and badass in her actions, and ATLA did anything but that.

These people have no idea what writing a compelling character entails, nor why people criticise the terrible writing out there.