Mistakes and abuse are different.

And I haven't heard the OP say that her parents made the choice to improve- to get help, to make amends, to take care of her, to heal the breach.

But my feeling is that "a mother who kicked you out of the house at age thirteen and a father who spent your teenage years ignoring you in favor of his new wife when you needed him most after this huge, crushing abandonment" is more than just a simple mistake. It's harmful, it's neglectful.

Also, I remember some of the other awful things you've written on this forum that your parents did to you, and I would never call that a mistake.