I agree with Scarlett regarding how your T should respect your choices. She doesn't have to agree with them, but should respect them. That said, there is nothing you will do to convince your therapist or most other people, that anything you did as an infant or child justifies abuse or neglect. It is an argument that will go in circles. As a T I think she'd know that it's not unusual for victims defend their abusers. Trying to convince you to change your mid isn't going to he effective in how you perceive things.