People are not inherently evil! You can reason with people.
People would be exploring space, flying to other planets, instead of bombing each other and imprisoning others for reposting a photo of an ancient tablecloth with ancient Russian sun symbols on social media! Northern peoples would not pay tribute to southern peoples because they are better at using cold and firearms!
You only appear to be human on the outside. You are a "human" de jure. But de facto, you are not a human. You can be classified as one of those parasitic insects.
4. Eliminated the parasitic insects.