It's just straight up mental gymnastics with how many hoops these people jump through to defend Tsubasa.
She's bad because she did a bad thing. She can become good/better in the future if she does good/better in the future. Done. Not that hard.
@mgRdr
As a larger, societal thing, what she said is mildly predictable. Society does not expect males to be raped. Society believes that they are able to defend themselves and that if they don't, then they wanted it to happen.
She said those things, and those things match up with [Japanese] society.
For Tsubasa specifically, we've seen her talking about being in a relationship with Kaede to her friend, Momoka. During that conversation, she had said that Kaede isn't that kind of boy, isn't a "
filthy" boy who engages in sexual things. That's chapter 9. When she found out what happened to him, she blamed him.