So Meyer wasn't trying to discriminate, but she did it anyway? Is that what you're trying to tell us?
I think you're confusing conscious discrimination with unconscious racism. They aren't the same thing. In fact, I'm not even sure they're connected. I think one can discriminate without being a racist and be a racist without discriminating.
Do you think discriminating is the same as being negative and hurtful? Because it isn't. Many TV shows and movies have depicted sweet, loving Indians who ended up happily. For instance, The Lone Ranger and Tonto, The Go-Go Gophers, Paw Paws, Dr. Quinn, Medicine Woman, Pocahontas, The Education of Little Tree, The Road to El Dorado, Shanghai Noon, End of the Spear, and The Emperor's New School--to name a few.
That doesn't mean these works weren't based on racist assumptions. Or that they were devoid of mistakes and stereotypes. Negative portrayals are only the most obvious sign of discrimination or racism. They aren't the only sign.
Have you heard of minstrel shows? Amos 'n' Andy? The Song of the South? Aunt Jemima? These sweet, fun-loving portrayals of blacks had little or nothing to do with reality. They were discriminatory and racist.
Yet their creators would've said they didn't intend to discriminate against blacks. And their fans would've defended the portrayals to the hilt. Which is roughly the position you and Meyer have taken on Twilight's Indians. Get the picture?
Below: "I'm a sweet, fun-loving stereotype!"