When your parents or childhood caretakers have abused you, it is profoundly important to admit that it was abuse* (at least to yourself), regardless of your current relationship. Childhood is where you get your sense of normal; if you were abused as a child, your subconscious sees abuse as normal until you retrain it.
Trying to just "see the best" in your caretaker's actions or excuse their behavior is not a positive habit because if you don't label their behavior as wrong, you are extremely likely to end up doing the same thing. You might not do it exactly the same ways, but you can't tell what to avoid until you face it with complete honesty. There are just too many ways to act it out without even realizing.
You can still love them if they abused you. You don't have to throw them away to acknowledge that what they did was wrong (but also if you want to throw them away, that is 100% fine). Even loving parents can be abusive and often are, because it is common for abuse to stem from a sheer lack of understanding of what is going to be helpful.
Sometimes when they are trying their best to be good parents is when they cause the most damage. Their intentions do not make up for their behavior. You can acknowledge that they tried to be good while actually doing harm.
*I'm defining abuse here as actions or neglect by caretakers which caused long-term emotional or physical harm to the child they raised.