Harry's Balancing Act

Oh Harry . . . what are we going to do with you?

We've seen you successfully work through every difficult obstacle, most of which deal with Voldemort, with some help from your friends and grow so much that you can approach Voldemort with pity and try to save him by offering a chance for remorse.

     Admirable on all accounts, BUT . . .

You can't get over your prejudice with Slytherin. You hear the Sorting Hat sing about unity nearly every year, but you refuse to believe that you could be friends with Draco or any other Slytherin student for that matter. It's been that way since you got at Hogwarts.

The Sorting Hat was placed on your head and you begged it not to put you in Slytherin because every wizard who ever went bad came from Slytherin and you didn't want to be one of those wizards/witches. To be fair, some of that was due to a bit of Voldemort's soul in your body, but you could have shared some Slytherin tendencies -- that doesn't necessarily make you a bad person (eg. Snape).
    To be fair, this was your first year at Hogwarts, so we'll excuse you for that momentarily.

Over your school years, however, you never changed. Your hatred of any and every Slytherin burned deep within your heart.

Even when the Battle of Hogwarts is long over and you are bringing your family to Platform 9 and 3/4 so James and Albus can go to school.  In the movie, you do spot Draco and share an acknowledging, noncommital head nod. This could be construed as progress . . .
     And then you lose it . . .

You do okay at first. Albus is afraid that he will become a Slytherin student. You tell him that it will be okay because Snape was Slytherin and turned out to be braver than most Gryffindor students ever turn out to be. You also tell him that he would make a fantastic student in any House, even if he is in Slytherin.
     But you couldn't leave it at that . . .
     You had to tell Albus that he can choose not to be in Slytherin if he asked the Hat. And all that hard work learning not to be prejudiced is gone. Clearly in your mind, and in the mind of your children, Slytherin is still bad.

You were so close Harry . . . so close, but you can't balance your judgments and opinions out even as an adult. Gryffindor = good and Slytherin = bad.
     You could have grown up completely, but you didn't.
     I expected more of you . . .
          we all did.