I think we have a different definition of Selfish.
Every wish made in the show, with the exception of Madokas final wish, was a selfish one. That was the point that Kyubey kept trying to hammer in, and why he was so shocked when Madoka broke his "rules".
It doesn't mean that Mami didn't care for her parents, but at the end of the day, she put her needs before theirs. Sayaka wanted Kamijo to be healed, but as (iirc) Kyouko points out, she really wanted him to be grateful. And while Homura did legitimately love Madoka, her constant resets and loops were because of what she wanted for Madoka. At least, it eventually got there.
And believe me, I'm totally fine with Mira's interpretation. I like seeing different viewpoints. And while Homura's desires were selfish at their core, it doesn't make them necessarily toxic or harmful. Just not as healthy as yuri shippers would want to believe.
I don't know, that's what I got from the show.