In Chapter Fourteen of Chamber of Secrets, Lee Jordan, random Gryffindor who’s always identified as “the Weasley twins’ friend Lee Jordan” (because he has no identity of his own), says maybe my favorite line thus far:
“Isn’t it obvious all this stuff’s coming from Slytherin? The Heir of Slytherin, the monster of Slytherin — why don’t they just chuck all the Slytherins out?”
In the book, Jordan’s line is greeted with smattering applause from his Gryffindor brethren, but that’s nothing compared to the OH MY GOD I KNOW RIGHT?! that I practically shouted after reading it.
Why is Slytherin still a house? It’s not just named after a wizard who didn’t want many of these students to be allowed into Hogwarts at all; it’s named after a wizard who created a monster to go KILL many of these students. What’s more, we’re told in the first book that every wizard who ever went bad came from Slytherin. Seriously?! Every single one? And they still let Slytherin exist???
Here’s a tip: if you put the Sorting Hat on someone, and it says Slytherin, follow Lee Jordan’s advice and just chuck them out. Sure, you’ll have some some perfectly non-evil kids who will be hurt. But in the absence of a Wizarding Constitution that prevents such lack of due process, I say go for it. The collateral damage will be worth it to prevent all future evil wizards.
You’re ahead of your time, Weasley twins’ friend Lee Jordan. You’re a hero.