If only we hadn't fought Hitler the German army probably would have just given up, turned their guns into ploughshares and planted pretty pretty flowers everywhere...
FFS...
Maybe the Doctor should have just let the Daleks remove the Earth's core and turn our planet into a giant war machine they could use to take over the universe eh? I'm sure they were just crazy, misguided kids mucking about, and they'd have probably given up and all got nice apprenticeships if we'd just given them a chance...
And note that was just the second time he ever met them, and even taking timey wimey’ness into account they didn’t have a clue who he was, so they could hardly just be reacting to him…
The Daleks have one goal, to survive, in their eyes they are the only life form that deserves to do so, all other life forms are inferior and though some can be useful for a time, in the end extermination is the eventual outcome.
Now look what you’ve done, you’ve made me sound like a Whovian NeoCon!