Why do Daleks want to destroy everything?

TLDR: they are engineered to hate everything and destroy everything that isn't dalek. We can answer this question in more detail, thanks to into a dalek and the magicans apprentice. In into the dalek we learn that daleks have memory banks, which suppress good pieceful memory's (like the brith of a star) and create hatred. read more

TLDR: they are engineered to hate everything and destroy everything that isn't dalek We can answer this question in more detail, thanks to into a dalek and the magicans apprentice. In into the dalek we learn that daleks have memory banks, which suppress good pieceful memory's (like the brith of a star) and create hatred. read more

Dalek voice [from the film trailer]: You have invaded the world of the Daleks; Every move you make, we can see; Every sound you utter, we can hear! Supreme Dalek: You will move ahead of us, and follow directions. read more

On Floor 500 The Doctor decided to create a Delta Wave to destroy the Daleks, but didn't have enough time to refine it so that it could distinguish between humans and Daleks. read more