They blame things on us even when it's not us - consider the Quidditch game where your father was nearly killed last month where they said it was the Order that instigated the attack.
We're fighting people that have put children your sister's age in Azkaban. That have put 11 year old in Azkaban. I don't agree that all purists are evil, but I do think that we need to be aggressive in order to gain ground.